Definition of crystal in English:

crystal

noun ˈkrɪst(ə)lˈkrɪstl

1A piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces.
晶体
a quartz crystal
ice crystals formed where his breath froze
Example sentencesExamples
- This month, NASA is conducting a field campaign in southern Florida to investigate high tropical cirrus clouds composed of tiny ice crystals.
- Depending on the plane of section, crystals may appear as triangles or other shapes in thin section.
- Natural crystals, by contrast, all bear repeating patterns like those commonly found in the tiling of a bathroom floor.
- But because of their fivefold symmetry, icosahedral clusters can't combine to form a regular crystal.
- It was still beautiful, brushed in white with ice crystals wrapping themselves around every branch and twig, but the vineyards and resorts I'd known were gone of course.
- Wiggling through fractured ice and snow crystals, they burrow as deep as three to six feet (one to two meters) beneath the surface of the ice.
- These were at first unsuccessful; the fruits were mushy when thawed, since they had been frozen too slowly so that large ice crystals formed which disrupted their delicate tissues.
- Cirrus cloud usually forms above 16,000 feet where the temperature is below freezing, and the resultant cloud consists of many millions of ice crystals.
- In fact, it is easy to spot the planes of large ice crystals when you bite into the lolly.
- Where possible, flawed sections are removed and larger crystals cut into smaller pieces with minimal wastage by splitting the crystal along natural cleavage planes.
- Most plant cells rupture when jagged ice crystals form inside them, and if enough damage takes place, plants die.
- But scientists have long known that the freezing process creates ice crystals, which destroy cells and cellular structures.
- Most ices and sorbets require beating or whisking regularly as they freeze, to break up the ice crystals.
1. 1.1Chemistry Any solid consisting of a symmetrical, ordered, three-dimensional aggregation of atoms or molecules.
  〔化〕结晶；结晶体
  Example sentencesExamples
  The pattern of diffracted rays and their intensity are determined from the arrangement of atoms and number of electrons on each atom in the crystal.
  The cleavage planes between prismatic stibnite crystals have been infilled by sphalerite.
  Thus, the crystals have cleavage planes for the necessary migration aptitude.
  If these photons are reflected back into the junction, by a cleavage plane in the crystal, for example, a standing wave can be established.
  Scientists soon learned that they could use X-ray diffraction to learn how atoms and molecules were arranged in crystals.
2. 1.2Electronics A crystalline piece of semiconductor used as an oscillator or transducer.
  〔电子〕（用作振荡器或变换器的半导体）晶体
  Example sentencesExamples
  The crystal oscillator is suitable for any fundamental mode crystals in the 5 to 30MHz range.
  This peak is then used to make the slight correction necessary to bring the crystal oscillator and hence the microwave field exactly on frequency.
  A crystal connected to an alternating voltage source will vibrate, generating an alternating voltage.
  Because atoms in a semiconductor crystal are adjacent, their action on one another causes electrons to pass energy continuously.
  More accurate clocks based on the regular vibrations of a quartz crystal superseded them.
3. 1.3mass noun A clear transparent mineral, especially quartz.
  水晶（尤指石英）
  cups cut from crystal
  Example sentencesExamples
  Some are made of pure quartz crystal, but many are made of other types of stone found in abundance on Earth.
  Somewhat darker, but no less impressive, is a similarly large crystal of smoky quartz from the Ural Mountains.
  Simultaneously, large quartz crystal groups were formed on the ceiling and walls of the cavern.
  Many of these calcite crystals and crystal groups are partially or completely covered with an overgrowth of pyrite.
  Certain crystals will split incoming light into two separate rays; Iceland spar is one such crystal, as are calcite and quartz.
4. 1.4 A piece of crystalline substance believed to have healing powers.
  （据信有治疗功效的）结晶体
  Example sentencesExamples
  Smoky Quartz is a powerful healing crystal and a grounder of excess energy.
  New Age practices such as occultism, crystal power and astrology are examples of spiritual but not religious pursuits of enlightenment.
  This opaque crystal is a powerful aura cleanser and can be used to clear sacred spaces.
  Steward claims she would not have been able to compete in the marathon without the crystal to awaken her dormant mind power.
  Starting from the top of the body, hold one crystal in front and one behind the back and gently work your way down.
2mass noun Highly transparent glass with a high refractive index.
水晶玻璃，晶质玻璃，富铅玻璃
as modifier a crystal chandelier
水晶玻璃枝形吊灯。
Example sentencesExamples
- Cut glass crystal was the mainstay and it took the intervention of fashion designers into the glass industry to turn the thinking around.
- To wash it all down, we stuck with the house white - an Australian wine, which is drunk from some new exquisite long stem crystal glasses.
- But she remembered one dream in detail and knew it to be a dream: She was at a party in a mansion with large mirrored rooms and crystal chandeliers.
- Canoe camps range from fully catered varieties with luxury tents and crystal glass down to more basic operations where you put up your own mosquito net and join in with the cooking.
- The inside of the restaurant is splendid and elegant, decorated with green crystal glass screens dividing it into different dining areas with dazzling dragon wall sculptures.
- Chorusing male red-ruffed fruit crows sound like breath blown across a bottle, followed by a finger spun along the wet rim of a crystal glass.
- Although the magical scenery filled with priceless glass and crystal furnishings was spectacular and worth a closer look, the two had no time to marvel at it.
- Expect the best crystal wine glasses, such as Schott or Riedel, in the correct shape for each wine, be it a Tempranillo or a Sauvignon Blanc.
- There will also be a show of local crafts including fretwork, crystal glass, embroidery, dancing costumes, placemats, potted plants, flowers, and taxidermy.
- Lifting up his glass of water, and noting the way the pure crystal glass glinted in the harsh light, he took a small sip from it.
- ‘There will be six pottery stalls, two selling stainless steel saucepans and one selling crystal glass,’ he said.
- Alexander shouted impatiently, banging his crystal glass of whisky down on the desk and spilling it slightly.
- Whether it's made of glass or brass, cutglass crystal or ceramics, a vase is a thing of beauty, writes SURABHI KHOSLA.
- High-grade crystal glass has its own delicate sound.
- Goods valued at thousands of euro, including crystal glass, have been taken by shoplifters, believed to be from Cork and Waterford, from a number of stores.
- There are over 40 varieties made from clay, marble, granite, brass, panchaloka, aluminium, papier-mâché rosewood, sandalwood, crystal glass etc.
- The place was a mess; all the tables were either broken or burnt to cinders, crystal glass and china fragments littered the floor along with shattered cutlery and shredded table cloths.
- The other terms that confuse many are the words crystal, cut crystal, or crystal glass.
- For instance, one room is completely walled in mirrors with huge crystal chandeliers hanging from the ceiling.
1. 2.1 Articles made of crystal glass.
  晶质玻璃制品
  a collection of crystal
  大量晶质玻璃制品。
  Example sentencesExamples
  Tables seating two to 10 are set with fine linen, china, silver, and crystal.
  Take larger valuables such as the family crystal, silverware, and china, and pack them away.
  Lace tablecloth, lace napkins, her mother's best china and Waterford crystal, and real silver silverware.
  The table is set as usual, with great attention to detail, with glimmering silver and shining crystal, but today I cannot find any delight in it.
  I used the best china, crystal, and silver for the table.
  I held my breath until he set the glass down on the counter envisioning what would happen to us if we broke a piece of Mother's crystal.
  Many little crystal and silver figures were placed on the ledge.
  The company is cutting jobs and closing plants to save money as demand ebbs for its china dinner services, glassware and crystal because consumers are spending less.
  But the real highlight of the trip was dinner, served in the opulent dining cars by candlelight on linen, with crystal, flowers and silverware.
  I returned his smile, moving off to investigate a small glass case of crystal figurines sitting beside one of the cash registers.
  Synonyms
  glassware, crystalware
2. 2.2count noun The glass over a watch face.
  （手表表面上的）水晶玻璃盖
  Example sentencesExamples
  The cornea is the clear part of the eye much like a watch crystal.
  The only description I can equate is when the watch crystal catches a beam of sun and dances around the walls/ceilings.
  Sapphire crystal is the cover of choice for premium watches.
3informal
short for crystal meth (methamphetamine)

adjective ˈkrɪst(ə)lˈkrɪstl

Clear and transparent like crystal.
晶莹的，清澈透明的
the clean crystal waters of the lake
清澈的湖水。
Example sentencesExamples
- The pool is motionless and so clear it gives a magnified look to what is underneath the crystal sheet of water.
- For this is a beautiful city, surrounded by waters of crystal purity and with a myriad of historic buildings to boot.
- He looked at the water again, clear and crystal blue.
- This lives up to its name for a hundred yards where it runs with crystal spring water, then we get dry track, a meadow or two, and the final climb back, all the way under the intimidating command of the castle.
- More accurately, he found himself unable to hear anything above the intense rage that clouded his mind, or rather, cleaned it to crystal clarity.
- Here crystal water, accompanied by brisk birds, carefree fish and ancient trees, flows through rocks, silent one moment and murmuring the next.
- It was full of green slime and muck instead of crystal clean water.
- It is a great place for little trout as they dart about in the crystal water and feed on the fat flies that unwittingly drop from the branches.
- But wading out into the crystal water, I had to remind myself that only 50m away was the largest accessible shipwreck in the world of recreational diving.
- Inside the thick envelope was a card showing a school of dolphins from above, surfacing through crystal water.
- The crystal light of a clear winter morning, dramatic stormy skies and the golden warmth of an autumn day: all find a place in this splendid evocation of the Lake District.
- The crystal blue sea and clean blue sky over the horizon varied occasionally from sunrise to sunset.
- Those who demand crystal water on every dive best stay at home, but on the positive side, it is this occasional green soup that draws in the mantas and the other vast profusion of life.
- He peered into the pool of clear, crystal water.
- Geese soared through air, and came to rest on the crystal water.
- The water was crystal green, reflecting the green mountains along the river.

Phrases

crystal clear

1Completely transparent and unclouded.
清澈的；透亮的
careful restoration work had turned the once polluted waters of the river crystal clear
Example sentencesExamples
- The water is warm and crystal clear, and few visual experiences beat watching the last rays of the sun fingering the canyon walls.
- The waterfalls were crystal clear, while elegant pavilions stand under trees that drip with bright red flowers.
- Although I visited in February, when snow was on the ground, most days were crystal clear, sunny and not overly cold.
- The surface area of the lake now covers 570 square kilometres and its waters are crystal clear.
- Where is the crystal clear, pure, unpolluted water that once characterized the river as well as most shallow wells in the area?
- The river is pale green and crystal clear, with brilliant orange stones on the bed in some parts, and we drank from it all the way along.
Synonyms
obvious, evident, plain, apparent, crystal clear, as clear as crystal, transparent
transparent, limpid, pellucid, translucent, crystalline, crystal clear, glassy, glass-like
1. 1.1Unambiguous; easily understood.
  清楚明白的；易懂的
  the house rules are crystal clear
  住房条例清楚明白。
  Example sentencesExamples
  The sound is also a fantastic element, crystal clear and always understandable.
  However, what is crystal clear is that many of the residents do not want to have a nuclear waste disposal facility in their region.
  My views on racism are crystal clear, so I assume there could be no question mark over my motivations.
  The sound was crystal clear, the music was haunting and soothing.
  It has also been made crystal clear by health authorities in the past that the blood which is donated undergoes a screening process.
  As I say, he makes his political position crystal clear.
  Recent events have made it crystal clear that this region is all too easily ignored by the nation's power brokers.
  This language of the plain and the crystal clear conceals the fact that we navigate in murky waters.
  On Friday the European parliament made its position crystal clear.
  But we are quite plain in terms of our policy and Mark has made it absolutely crystal clear that that policy is not about to change.
  Synonyms
  unambiguous, unmistakable, indisputable, incontrovertible, indubitable, undeniable

Origin

Late Old English (denoting ice or a mineral resembling it), from Old French cristal, from Latin crystallum, from Greek krustallos 'ice, crystal'. The chemistry sense dates from the early 17th century.

Crystal started out as a term for ice or a mineral that looks like ice. It comes from Old French cristal, and ultimately from Greek krustallos meaning ‘ice, crystal’. Its use as a term in chemistry dates from the early 17th century.

Rhymes

Bristol, Chrystal, pistol

Definition of crystal in US English:

crystal

nounˈkrɪstlˈkristl

1A piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces.
晶体
Example sentencesExamples
- It was still beautiful, brushed in white with ice crystals wrapping themselves around every branch and twig, but the vineyards and resorts I'd known were gone of course.
- This month, NASA is conducting a field campaign in southern Florida to investigate high tropical cirrus clouds composed of tiny ice crystals.
- Most plant cells rupture when jagged ice crystals form inside them, and if enough damage takes place, plants die.
- But because of their fivefold symmetry, icosahedral clusters can't combine to form a regular crystal.
- Natural crystals, by contrast, all bear repeating patterns like those commonly found in the tiling of a bathroom floor.
- These were at first unsuccessful; the fruits were mushy when thawed, since they had been frozen too slowly so that large ice crystals formed which disrupted their delicate tissues.
- But scientists have long known that the freezing process creates ice crystals, which destroy cells and cellular structures.
- Where possible, flawed sections are removed and larger crystals cut into smaller pieces with minimal wastage by splitting the crystal along natural cleavage planes.
- Most ices and sorbets require beating or whisking regularly as they freeze, to break up the ice crystals.
- Cirrus cloud usually forms above 16,000 feet where the temperature is below freezing, and the resultant cloud consists of many millions of ice crystals.
- Depending on the plane of section, crystals may appear as triangles or other shapes in thin section.
- Wiggling through fractured ice and snow crystals, they burrow as deep as three to six feet (one to two meters) beneath the surface of the ice.
- In fact, it is easy to spot the planes of large ice crystals when you bite into the lolly.
1. 1.1Chemistry Any solid consisting of a symmetrical, ordered, three-dimensional aggregation of atoms or molecules.
  〔化〕结晶；结晶体
  Example sentencesExamples
  Scientists soon learned that they could use X-ray diffraction to learn how atoms and molecules were arranged in crystals.
  Thus, the crystals have cleavage planes for the necessary migration aptitude.
  The cleavage planes between prismatic stibnite crystals have been infilled by sphalerite.
  If these photons are reflected back into the junction, by a cleavage plane in the crystal, for example, a standing wave can be established.
  The pattern of diffracted rays and their intensity are determined from the arrangement of atoms and number of electrons on each atom in the crystal.
2. 1.2Electronics A crystalline piece of semiconductor used as an oscillator or transducer.
  〔电子〕（用作振荡器或变换器的半导体）晶体
  Example sentencesExamples
  A crystal connected to an alternating voltage source will vibrate, generating an alternating voltage.
  The crystal oscillator is suitable for any fundamental mode crystals in the 5 to 30MHz range.
  This peak is then used to make the slight correction necessary to bring the crystal oscillator and hence the microwave field exactly on frequency.
  Because atoms in a semiconductor crystal are adjacent, their action on one another causes electrons to pass energy continuously.
  More accurate clocks based on the regular vibrations of a quartz crystal superseded them.
3. 1.3 A clear transparent mineral, especially quartz.
  水晶（尤指石英）
  Example sentencesExamples
  Somewhat darker, but no less impressive, is a similarly large crystal of smoky quartz from the Ural Mountains.
  Certain crystals will split incoming light into two separate rays; Iceland spar is one such crystal, as are calcite and quartz.
  Many of these calcite crystals and crystal groups are partially or completely covered with an overgrowth of pyrite.
  Simultaneously, large quartz crystal groups were formed on the ceiling and walls of the cavern.
  Some are made of pure quartz crystal, but many are made of other types of stone found in abundance on Earth.
4. 1.4 A piece of crystalline substance believed to have healing powers.
  （据信有治疗功效的）结晶体
  Example sentencesExamples
  This opaque crystal is a powerful aura cleanser and can be used to clear sacred spaces.
  Starting from the top of the body, hold one crystal in front and one behind the back and gently work your way down.
  Steward claims she would not have been able to compete in the marathon without the crystal to awaken her dormant mind power.
  New Age practices such as occultism, crystal power and astrology are examples of spiritual but not religious pursuits of enlightenment.
  Smoky Quartz is a powerful healing crystal and a grounder of excess energy.
2Highly transparent glass with a high refractive index.
水晶玻璃，晶质玻璃，富铅玻璃
as modifier a crystal chandelier
水晶玻璃枝形吊灯。
Example sentencesExamples
- High-grade crystal glass has its own delicate sound.
- But she remembered one dream in detail and knew it to be a dream: She was at a party in a mansion with large mirrored rooms and crystal chandeliers.
- Lifting up his glass of water, and noting the way the pure crystal glass glinted in the harsh light, he took a small sip from it.
- The other terms that confuse many are the words crystal, cut crystal, or crystal glass.
- Whether it's made of glass or brass, cutglass crystal or ceramics, a vase is a thing of beauty, writes SURABHI KHOSLA.
- There are over 40 varieties made from clay, marble, granite, brass, panchaloka, aluminium, papier-mâché rosewood, sandalwood, crystal glass etc.
- Canoe camps range from fully catered varieties with luxury tents and crystal glass down to more basic operations where you put up your own mosquito net and join in with the cooking.
- The place was a mess; all the tables were either broken or burnt to cinders, crystal glass and china fragments littered the floor along with shattered cutlery and shredded table cloths.
- Chorusing male red-ruffed fruit crows sound like breath blown across a bottle, followed by a finger spun along the wet rim of a crystal glass.
- Alexander shouted impatiently, banging his crystal glass of whisky down on the desk and spilling it slightly.
- There will also be a show of local crafts including fretwork, crystal glass, embroidery, dancing costumes, placemats, potted plants, flowers, and taxidermy.
- Although the magical scenery filled with priceless glass and crystal furnishings was spectacular and worth a closer look, the two had no time to marvel at it.
- For instance, one room is completely walled in mirrors with huge crystal chandeliers hanging from the ceiling.
- ‘There will be six pottery stalls, two selling stainless steel saucepans and one selling crystal glass,’ he said.
- Cut glass crystal was the mainstay and it took the intervention of fashion designers into the glass industry to turn the thinking around.
- Expect the best crystal wine glasses, such as Schott or Riedel, in the correct shape for each wine, be it a Tempranillo or a Sauvignon Blanc.
- To wash it all down, we stuck with the house white - an Australian wine, which is drunk from some new exquisite long stem crystal glasses.
- The inside of the restaurant is splendid and elegant, decorated with green crystal glass screens dividing it into different dining areas with dazzling dragon wall sculptures.
- Goods valued at thousands of euro, including crystal glass, have been taken by shoplifters, believed to be from Cork and Waterford, from a number of stores.
1. 2.1 Articles made of crystal glass.
  晶质玻璃制品
  a collection of crystal
  大量晶质玻璃制品。
  Example sentencesExamples
  Tables seating two to 10 are set with fine linen, china, silver, and crystal.
  Many little crystal and silver figures were placed on the ledge.
  Lace tablecloth, lace napkins, her mother's best china and Waterford crystal, and real silver silverware.
  I used the best china, crystal, and silver for the table.
  I held my breath until he set the glass down on the counter envisioning what would happen to us if we broke a piece of Mother's crystal.
  But the real highlight of the trip was dinner, served in the opulent dining cars by candlelight on linen, with crystal, flowers and silverware.
  Take larger valuables such as the family crystal, silverware, and china, and pack them away.
  The company is cutting jobs and closing plants to save money as demand ebbs for its china dinner services, glassware and crystal because consumers are spending less.
  I returned his smile, moving off to investigate a small glass case of crystal figurines sitting beside one of the cash registers.
  The table is set as usual, with great attention to detail, with glimmering silver and shining crystal, but today I cannot find any delight in it.
  Synonyms
  glassware, crystalware
2. 2.2 The glass over a watch face.
  （手表表面上的）水晶玻璃盖
  Example sentencesExamples
  The only description I can equate is when the watch crystal catches a beam of sun and dances around the walls/ceilings.
  The cornea is the clear part of the eye much like a watch crystal.
  Sapphire crystal is the cover of choice for premium watches.
3informal
short for crystal meth (methamphetamine)

adjectiveˈkrɪstlˈkristl

Clear and transparent like crystal.
晶莹的，清澈透明的
the clean crystal waters of the lake
清澈的湖水。
Example sentencesExamples
- Inside the thick envelope was a card showing a school of dolphins from above, surfacing through crystal water.
- The pool is motionless and so clear it gives a magnified look to what is underneath the crystal sheet of water.
- The water was crystal green, reflecting the green mountains along the river.
- Here crystal water, accompanied by brisk birds, carefree fish and ancient trees, flows through rocks, silent one moment and murmuring the next.
- Those who demand crystal water on every dive best stay at home, but on the positive side, it is this occasional green soup that draws in the mantas and the other vast profusion of life.
- It was full of green slime and muck instead of crystal clean water.
- Geese soared through air, and came to rest on the crystal water.
- He peered into the pool of clear, crystal water.
- It is a great place for little trout as they dart about in the crystal water and feed on the fat flies that unwittingly drop from the branches.
- This lives up to its name for a hundred yards where it runs with crystal spring water, then we get dry track, a meadow or two, and the final climb back, all the way under the intimidating command of the castle.
- For this is a beautiful city, surrounded by waters of crystal purity and with a myriad of historic buildings to boot.
- He looked at the water again, clear and crystal blue.
- But wading out into the crystal water, I had to remind myself that only 50m away was the largest accessible shipwreck in the world of recreational diving.
- The crystal blue sea and clean blue sky over the horizon varied occasionally from sunrise to sunset.
- More accurately, he found himself unable to hear anything above the intense rage that clouded his mind, or rather, cleaned it to crystal clarity.
- The crystal light of a clear winter morning, dramatic stormy skies and the golden warmth of an autumn day: all find a place in this splendid evocation of the Lake District.

Phrases

crystal clear

1Completely transparent and unclouded.
清澈的；透亮的
Example sentencesExamples
- The waterfalls were crystal clear, while elegant pavilions stand under trees that drip with bright red flowers.
- The water is warm and crystal clear, and few visual experiences beat watching the last rays of the sun fingering the canyon walls.
- The river is pale green and crystal clear, with brilliant orange stones on the bed in some parts, and we drank from it all the way along.
- The surface area of the lake now covers 570 square kilometres and its waters are crystal clear.
- Although I visited in February, when snow was on the ground, most days were crystal clear, sunny and not overly cold.
- Where is the crystal clear, pure, unpolluted water that once characterized the river as well as most shallow wells in the area?
Synonyms
obvious, evident, plain, apparent, crystal clear, as clear as crystal, transparent
transparent, limpid, pellucid, translucent, crystalline, crystal clear, glassy, glass-like
1. 1.1Unambiguous; easily understood.
  清楚明白的；易懂的
  the house rules are crystal clear
  住房条例清楚明白。
  Example sentencesExamples
  As I say, he makes his political position crystal clear.
  It has also been made crystal clear by health authorities in the past that the blood which is donated undergoes a screening process.
  The sound is also a fantastic element, crystal clear and always understandable.
  However, what is crystal clear is that many of the residents do not want to have a nuclear waste disposal facility in their region.
  Recent events have made it crystal clear that this region is all too easily ignored by the nation's power brokers.
  But we are quite plain in terms of our policy and Mark has made it absolutely crystal clear that that policy is not about to change.
  On Friday the European parliament made its position crystal clear.
  My views on racism are crystal clear, so I assume there could be no question mark over my motivations.
  The sound was crystal clear, the music was haunting and soothing.
  This language of the plain and the crystal clear conceals the fact that we navigate in murky waters.
  Synonyms
  unambiguous, unmistakable, indisputable, incontrovertible, indubitable, undeniable

Origin

Late Old English (denoting ice or a mineral resembling it), from Old French cristal, from Latin crystallum, from Greek krustallos ‘ice, crystal’. The chemistry sense dates from the early 17th century.

词汇	crystal
释义	Definition of crystal in English: crystal noun ˈkrɪst(ə)lˈkrɪstl 1A piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces. 晶体 a quartz crystal ice crystals formed where his breath froze Example sentencesExamples This month, NASA is conducting a field campaign in southern Florida to investigate high tropical cirrus clouds composed of tiny ice crystals. Depending on the plane of section, crystals may appear as triangles or other shapes in thin section. Natural crystals, by contrast, all bear repeating patterns like those commonly found in the tiling of a bathroom floor. But because of their fivefold symmetry, icosahedral clusters can't combine to form a regular crystal. It was still beautiful, brushed in white with ice crystals wrapping themselves around every branch and twig, but the vineyards and resorts I'd known were gone of course. Wiggling through fractured ice and snow crystals, they burrow as deep as three to six feet (one to two meters) beneath the surface of the ice. These were at first unsuccessful; the fruits were mushy when thawed, since they had been frozen too slowly so that large ice crystals formed which disrupted their delicate tissues. Cirrus cloud usually forms above 16,000 feet where the temperature is below freezing, and the resultant cloud consists of many millions of ice crystals. In fact, it is easy to spot the planes of large ice crystals when you bite into the lolly. Where possible, flawed sections are removed and larger crystals cut into smaller pieces with minimal wastage by splitting the crystal along natural cleavage planes. Most plant cells rupture when jagged ice crystals form inside them, and if enough damage takes place, plants die. But scientists have long known that the freezing process creates ice crystals, which destroy cells and cellular structures. Most ices and sorbets require beating or whisking regularly as they freeze, to break up the ice crystals. 1.1Chemistry Any solid consisting of a symmetrical, ordered, three-dimensional aggregation of atoms or molecules. 〔化〕结晶；结晶体 Example sentencesExamples The pattern of diffracted rays and their intensity are determined from the arrangement of atoms and number of electrons on each atom in the crystal. The cleavage planes between prismatic stibnite crystals have been infilled by sphalerite. Thus, the crystals have cleavage planes for the necessary migration aptitude. If these photons are reflected back into the junction, by a cleavage plane in the crystal, for example, a standing wave can be established. Scientists soon learned that they could use X-ray diffraction to learn how atoms and molecules were arranged in crystals. 1.2Electronics A crystalline piece of semiconductor used as an oscillator or transducer. 〔电子〕（用作振荡器或变换器的半导体）晶体 Example sentencesExamples The crystal oscillator is suitable for any fundamental mode crystals in the 5 to 30MHz range. This peak is then used to make the slight correction necessary to bring the crystal oscillator and hence the microwave field exactly on frequency. A crystal connected to an alternating voltage source will vibrate, generating an alternating voltage. Because atoms in a semiconductor crystal are adjacent, their action on one another causes electrons to pass energy continuously. More accurate clocks based on the regular vibrations of a quartz crystal superseded them. 1.3mass noun A clear transparent mineral, especially quartz. 水晶（尤指石英） cups cut from crystal Example sentencesExamples Some are made of pure quartz crystal, but many are made of other types of stone found in abundance on Earth. Somewhat darker, but no less impressive, is a similarly large crystal of smoky quartz from the Ural Mountains. Simultaneously, large quartz crystal groups were formed on the ceiling and walls of the cavern. Many of these calcite crystals and crystal groups are partially or completely covered with an overgrowth of pyrite. Certain crystals will split incoming light into two separate rays; Iceland spar is one such crystal, as are calcite and quartz. 1.4 A piece of crystalline substance believed to have healing powers. （据信有治疗功效的）结晶体 Example sentencesExamples Smoky Quartz is a powerful healing crystal and a grounder of excess energy. New Age practices such as occultism, crystal power and astrology are examples of spiritual but not religious pursuits of enlightenment. This opaque crystal is a powerful aura cleanser and can be used to clear sacred spaces. Steward claims she would not have been able to compete in the marathon without the crystal to awaken her dormant mind power. Starting from the top of the body, hold one crystal in front and one behind the back and gently work your way down. 2mass noun Highly transparent glass with a high refractive index. 水晶玻璃，晶质玻璃，富铅玻璃 as modifier a crystal chandelier 水晶玻璃枝形吊灯。 Example sentencesExamples Cut glass crystal was the mainstay and it took the intervention of fashion designers into the glass industry to turn the thinking around. To wash it all down, we stuck with the house white - an Australian wine, which is drunk from some new exquisite long stem crystal glasses. But she remembered one dream in detail and knew it to be a dream: She was at a party in a mansion with large mirrored rooms and crystal chandeliers. Canoe camps range from fully catered varieties with luxury tents and crystal glass down to more basic operations where you put up your own mosquito net and join in with the cooking. The inside of the restaurant is splendid and elegant, decorated with green crystal glass screens dividing it into different dining areas with dazzling dragon wall sculptures. Chorusing male red-ruffed fruit crows sound like breath blown across a bottle, followed by a finger spun along the wet rim of a crystal glass. Although the magical scenery filled with priceless glass and crystal furnishings was spectacular and worth a closer look, the two had no time to marvel at it. Expect the best crystal wine glasses, such as Schott or Riedel, in the correct shape for each wine, be it a Tempranillo or a Sauvignon Blanc. There will also be a show of local crafts including fretwork, crystal glass, embroidery, dancing costumes, placemats, potted plants, flowers, and taxidermy. Lifting up his glass of water, and noting the way the pure crystal glass glinted in the harsh light, he took a small sip from it. ‘There will be six pottery stalls, two selling stainless steel saucepans and one selling crystal glass,’ he said. Alexander shouted impatiently, banging his crystal glass of whisky down on the desk and spilling it slightly. Whether it's made of glass or brass, cutglass crystal or ceramics, a vase is a thing of beauty, writes SURABHI KHOSLA. High-grade crystal glass has its own delicate sound. Goods valued at thousands of euro, including crystal glass, have been taken by shoplifters, believed to be from Cork and Waterford, from a number of stores. There are over 40 varieties made from clay, marble, granite, brass, panchaloka, aluminium, papier-mâché rosewood, sandalwood, crystal glass etc. The place was a mess; all the tables were either broken or burnt to cinders, crystal glass and china fragments littered the floor along with shattered cutlery and shredded table cloths. The other terms that confuse many are the words crystal, cut crystal, or crystal glass. For instance, one room is completely walled in mirrors with huge crystal chandeliers hanging from the ceiling. 2.1 Articles made of crystal glass. 晶质玻璃制品 a collection of crystal 大量晶质玻璃制品。 Example sentencesExamples Tables seating two to 10 are set with fine linen, china, silver, and crystal. Take larger valuables such as the family crystal, silverware, and china, and pack them away. Lace tablecloth, lace napkins, her mother's best china and Waterford crystal, and real silver silverware. The table is set as usual, with great attention to detail, with glimmering silver and shining crystal, but today I cannot find any delight in it. I used the best china, crystal, and silver for the table. I held my breath until he set the glass down on the counter envisioning what would happen to us if we broke a piece of Mother's crystal. Many little crystal and silver figures were placed on the ledge. The company is cutting jobs and closing plants to save money as demand ebbs for its china dinner services, glassware and crystal because consumers are spending less. But the real highlight of the trip was dinner, served in the opulent dining cars by candlelight on linen, with crystal, flowers and silverware. I returned his smile, moving off to investigate a small glass case of crystal figurines sitting beside one of the cash registers. Synonyms glassware, crystalware 2.2count noun The glass over a watch face. （手表表面上的）水晶玻璃盖 Example sentencesExamples The cornea is the clear part of the eye much like a watch crystal. The only description I can equate is when the watch crystal catches a beam of sun and dances around the walls/ceilings. Sapphire crystal is the cover of choice for premium watches. 3informal short for crystal meth (methamphetamine) adjective ˈkrɪst(ə)lˈkrɪstl Clear and transparent like crystal. 晶莹的，清澈透明的 the clean crystal waters of the lake 清澈的湖水。 Example sentencesExamples The pool is motionless and so clear it gives a magnified look to what is underneath the crystal sheet of water. For this is a beautiful city, surrounded by waters of crystal purity and with a myriad of historic buildings to boot. He looked at the water again, clear and crystal blue. This lives up to its name for a hundred yards where it runs with crystal spring water, then we get dry track, a meadow or two, and the final climb back, all the way under the intimidating command of the castle. More accurately, he found himself unable to hear anything above the intense rage that clouded his mind, or rather, cleaned it to crystal clarity. Here crystal water, accompanied by brisk birds, carefree fish and ancient trees, flows through rocks, silent one moment and murmuring the next. It was full of green slime and muck instead of crystal clean water. It is a great place for little trout as they dart about in the crystal water and feed on the fat flies that unwittingly drop from the branches. But wading out into the crystal water, I had to remind myself that only 50m away was the largest accessible shipwreck in the world of recreational diving. Inside the thick envelope was a card showing a school of dolphins from above, surfacing through crystal water. The crystal light of a clear winter morning, dramatic stormy skies and the golden warmth of an autumn day: all find a place in this splendid evocation of the Lake District. The crystal blue sea and clean blue sky over the horizon varied occasionally from sunrise to sunset. Those who demand crystal water on every dive best stay at home, but on the positive side, it is this occasional green soup that draws in the mantas and the other vast profusion of life. He peered into the pool of clear, crystal water. Geese soared through air, and came to rest on the crystal water. The water was crystal green, reflecting the green mountains along the river. Phrases crystal clear 1Completely transparent and unclouded. 清澈的；透亮的 careful restoration work had turned the once polluted waters of the river crystal clear Example sentencesExamples The water is warm and crystal clear, and few visual experiences beat watching the last rays of the sun fingering the canyon walls. The waterfalls were crystal clear, while elegant pavilions stand under trees that drip with bright red flowers. Although I visited in February, when snow was on the ground, most days were crystal clear, sunny and not overly cold. The surface area of the lake now covers 570 square kilometres and its waters are crystal clear. Where is the crystal clear, pure, unpolluted water that once characterized the river as well as most shallow wells in the area? The river is pale green and crystal clear, with brilliant orange stones on the bed in some parts, and we drank from it all the way along. Synonyms obvious, evident, plain, apparent, crystal clear, as clear as crystal, transparent transparent, limpid, pellucid, translucent, crystalline, crystal clear, glassy, glass-like 1.1Unambiguous; easily understood. 清楚明白的；易懂的 the house rules are crystal clear 住房条例清楚明白。 Example sentencesExamples The sound is also a fantastic element, crystal clear and always understandable. However, what is crystal clear is that many of the residents do not want to have a nuclear waste disposal facility in their region. My views on racism are crystal clear, so I assume there could be no question mark over my motivations. The sound was crystal clear, the music was haunting and soothing. It has also been made crystal clear by health authorities in the past that the blood which is donated undergoes a screening process. As I say, he makes his political position crystal clear. Recent events have made it crystal clear that this region is all too easily ignored by the nation's power brokers. This language of the plain and the crystal clear conceals the fact that we navigate in murky waters. On Friday the European parliament made its position crystal clear. But we are quite plain in terms of our policy and Mark has made it absolutely crystal clear that that policy is not about to change. Synonyms unambiguous, unmistakable, indisputable, incontrovertible, indubitable, undeniable Origin Late Old English (denoting ice or a mineral resembling it), from Old French cristal, from Latin crystallum, from Greek krustallos 'ice, crystal'. The chemistry sense dates from the early 17th century. Crystal started out as a term for ice or a mineral that looks like ice. It comes from Old French cristal, and ultimately from Greek krustallos meaning ‘ice, crystal’. Its use as a term in chemistry dates from the early 17th century. Rhymes Bristol, Chrystal, pistol noun.1 phr. Definition of crystal in US English: crystal nounˈkrɪstlˈkristl 1A piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces. 晶体 Example sentencesExamples It was still beautiful, brushed in white with ice crystals wrapping themselves around every branch and twig, but the vineyards and resorts I'd known were gone of course. This month, NASA is conducting a field campaign in southern Florida to investigate high tropical cirrus clouds composed of tiny ice crystals. Most plant cells rupture when jagged ice crystals form inside them, and if enough damage takes place, plants die. But because of their fivefold symmetry, icosahedral clusters can't combine to form a regular crystal. Natural crystals, by contrast, all bear repeating patterns like those commonly found in the tiling of a bathroom floor. These were at first unsuccessful; the fruits were mushy when thawed, since they had been frozen too slowly so that large ice crystals formed which disrupted their delicate tissues. But scientists have long known that the freezing process creates ice crystals, which destroy cells and cellular structures. Where possible, flawed sections are removed and larger crystals cut into smaller pieces with minimal wastage by splitting the crystal along natural cleavage planes. Most ices and sorbets require beating or whisking regularly as they freeze, to break up the ice crystals. Cirrus cloud usually forms above 16,000 feet where the temperature is below freezing, and the resultant cloud consists of many millions of ice crystals. Depending on the plane of section, crystals may appear as triangles or other shapes in thin section. Wiggling through fractured ice and snow crystals, they burrow as deep as three to six feet (one to two meters) beneath the surface of the ice. In fact, it is easy to spot the planes of large ice crystals when you bite into the lolly. 1.1Chemistry Any solid consisting of a symmetrical, ordered, three-dimensional aggregation of atoms or molecules. 〔化〕结晶；结晶体 Example sentencesExamples Scientists soon learned that they could use X-ray diffraction to learn how atoms and molecules were arranged in crystals. Thus, the crystals have cleavage planes for the necessary migration aptitude. The cleavage planes between prismatic stibnite crystals have been infilled by sphalerite. If these photons are reflected back into the junction, by a cleavage plane in the crystal, for example, a standing wave can be established. The pattern of diffracted rays and their intensity are determined from the arrangement of atoms and number of electrons on each atom in the crystal. 1.2Electronics A crystalline piece of semiconductor used as an oscillator or transducer. 〔电子〕（用作振荡器或变换器的半导体）晶体 Example sentencesExamples A crystal connected to an alternating voltage source will vibrate, generating an alternating voltage. The crystal oscillator is suitable for any fundamental mode crystals in the 5 to 30MHz range. This peak is then used to make the slight correction necessary to bring the crystal oscillator and hence the microwave field exactly on frequency. Because atoms in a semiconductor crystal are adjacent, their action on one another causes electrons to pass energy continuously. More accurate clocks based on the regular vibrations of a quartz crystal superseded them. 1.3 A clear transparent mineral, especially quartz. 水晶（尤指石英） Example sentencesExamples Somewhat darker, but no less impressive, is a similarly large crystal of smoky quartz from the Ural Mountains. Certain crystals will split incoming light into two separate rays; Iceland spar is one such crystal, as are calcite and quartz. Many of these calcite crystals and crystal groups are partially or completely covered with an overgrowth of pyrite. Simultaneously, large quartz crystal groups were formed on the ceiling and walls of the cavern. Some are made of pure quartz crystal, but many are made of other types of stone found in abundance on Earth. 1.4 A piece of crystalline substance believed to have healing powers. （据信有治疗功效的）结晶体 Example sentencesExamples This opaque crystal is a powerful aura cleanser and can be used to clear sacred spaces. Starting from the top of the body, hold one crystal in front and one behind the back and gently work your way down. Steward claims she would not have been able to compete in the marathon without the crystal to awaken her dormant mind power. New Age practices such as occultism, crystal power and astrology are examples of spiritual but not religious pursuits of enlightenment. Smoky Quartz is a powerful healing crystal and a grounder of excess energy. 2Highly transparent glass with a high refractive index. 水晶玻璃，晶质玻璃，富铅玻璃 as modifier a crystal chandelier 水晶玻璃枝形吊灯。 Example sentencesExamples High-grade crystal glass has its own delicate sound. But she remembered one dream in detail and knew it to be a dream: She was at a party in a mansion with large mirrored rooms and crystal chandeliers. Lifting up his glass of water, and noting the way the pure crystal glass glinted in the harsh light, he took a small sip from it. The other terms that confuse many are the words crystal, cut crystal, or crystal glass. Whether it's made of glass or brass, cutglass crystal or ceramics, a vase is a thing of beauty, writes SURABHI KHOSLA. There are over 40 varieties made from clay, marble, granite, brass, panchaloka, aluminium, papier-mâché rosewood, sandalwood, crystal glass etc. Canoe camps range from fully catered varieties with luxury tents and crystal glass down to more basic operations where you put up your own mosquito net and join in with the cooking. The place was a mess; all the tables were either broken or burnt to cinders, crystal glass and china fragments littered the floor along with shattered cutlery and shredded table cloths. Chorusing male red-ruffed fruit crows sound like breath blown across a bottle, followed by a finger spun along the wet rim of a crystal glass. Alexander shouted impatiently, banging his crystal glass of whisky down on the desk and spilling it slightly. There will also be a show of local crafts including fretwork, crystal glass, embroidery, dancing costumes, placemats, potted plants, flowers, and taxidermy. Although the magical scenery filled with priceless glass and crystal furnishings was spectacular and worth a closer look, the two had no time to marvel at it. For instance, one room is completely walled in mirrors with huge crystal chandeliers hanging from the ceiling. ‘There will be six pottery stalls, two selling stainless steel saucepans and one selling crystal glass,’ he said. Cut glass crystal was the mainstay and it took the intervention of fashion designers into the glass industry to turn the thinking around. Expect the best crystal wine glasses, such as Schott or Riedel, in the correct shape for each wine, be it a Tempranillo or a Sauvignon Blanc. To wash it all down, we stuck with the house white - an Australian wine, which is drunk from some new exquisite long stem crystal glasses. The inside of the restaurant is splendid and elegant, decorated with green crystal glass screens dividing it into different dining areas with dazzling dragon wall sculptures. Goods valued at thousands of euro, including crystal glass, have been taken by shoplifters, believed to be from Cork and Waterford, from a number of stores. 2.1 Articles made of crystal glass. 晶质玻璃制品 a collection of crystal 大量晶质玻璃制品。 Example sentencesExamples Tables seating two to 10 are set with fine linen, china, silver, and crystal. Many little crystal and silver figures were placed on the ledge. Lace tablecloth, lace napkins, her mother's best china and Waterford crystal, and real silver silverware. I used the best china, crystal, and silver for the table. I held my breath until he set the glass down on the counter envisioning what would happen to us if we broke a piece of Mother's crystal. But the real highlight of the trip was dinner, served in the opulent dining cars by candlelight on linen, with crystal, flowers and silverware. Take larger valuables such as the family crystal, silverware, and china, and pack them away. The company is cutting jobs and closing plants to save money as demand ebbs for its china dinner services, glassware and crystal because consumers are spending less. I returned his smile, moving off to investigate a small glass case of crystal figurines sitting beside one of the cash registers. The table is set as usual, with great attention to detail, with glimmering silver and shining crystal, but today I cannot find any delight in it. Synonyms glassware, crystalware 2.2 The glass over a watch face. （手表表面上的）水晶玻璃盖 Example sentencesExamples The only description I can equate is when the watch crystal catches a beam of sun and dances around the walls/ceilings. The cornea is the clear part of the eye much like a watch crystal. Sapphire crystal is the cover of choice for premium watches. 3informal short for crystal meth (methamphetamine) adjectiveˈkrɪstlˈkristl Clear and transparent like crystal. 晶莹的，清澈透明的 the clean crystal waters of the lake 清澈的湖水。 Example sentencesExamples Inside the thick envelope was a card showing a school of dolphins from above, surfacing through crystal water. The pool is motionless and so clear it gives a magnified look to what is underneath the crystal sheet of water. The water was crystal green, reflecting the green mountains along the river. Here crystal water, accompanied by brisk birds, carefree fish and ancient trees, flows through rocks, silent one moment and murmuring the next. Those who demand crystal water on every dive best stay at home, but on the positive side, it is this occasional green soup that draws in the mantas and the other vast profusion of life. It was full of green slime and muck instead of crystal clean water. Geese soared through air, and came to rest on the crystal water. He peered into the pool of clear, crystal water. It is a great place for little trout as they dart about in the crystal water and feed on the fat flies that unwittingly drop from the branches. This lives up to its name for a hundred yards where it runs with crystal spring water, then we get dry track, a meadow or two, and the final climb back, all the way under the intimidating command of the castle. For this is a beautiful city, surrounded by waters of crystal purity and with a myriad of historic buildings to boot. He looked at the water again, clear and crystal blue. But wading out into the crystal water, I had to remind myself that only 50m away was the largest accessible shipwreck in the world of recreational diving. The crystal blue sea and clean blue sky over the horizon varied occasionally from sunrise to sunset. More accurately, he found himself unable to hear anything above the intense rage that clouded his mind, or rather, cleaned it to crystal clarity. The crystal light of a clear winter morning, dramatic stormy skies and the golden warmth of an autumn day: all find a place in this splendid evocation of the Lake District. Phrases crystal clear 1Completely transparent and unclouded. 清澈的；透亮的 Example sentencesExamples The waterfalls were crystal clear, while elegant pavilions stand under trees that drip with bright red flowers. The water is warm and crystal clear, and few visual experiences beat watching the last rays of the sun fingering the canyon walls. The river is pale green and crystal clear, with brilliant orange stones on the bed in some parts, and we drank from it all the way along. The surface area of the lake now covers 570 square kilometres and its waters are crystal clear. Although I visited in February, when snow was on the ground, most days were crystal clear, sunny and not overly cold. Where is the crystal clear, pure, unpolluted water that once characterized the river as well as most shallow wells in the area? Synonyms obvious, evident, plain, apparent, crystal clear, as clear as crystal, transparent transparent, limpid, pellucid, translucent, crystalline, crystal clear, glassy, glass-like 1.1Unambiguous; easily understood. 清楚明白的；易懂的 the house rules are crystal clear 住房条例清楚明白。 Example sentencesExamples As I say, he makes his political position crystal clear. It has also been made crystal clear by health authorities in the past that the blood which is donated undergoes a screening process. The sound is also a fantastic element, crystal clear and always understandable. However, what is crystal clear is that many of the residents do not want to have a nuclear waste disposal facility in their region. Recent events have made it crystal clear that this region is all too easily ignored by the nation's power brokers. But we are quite plain in terms of our policy and Mark has made it absolutely crystal clear that that policy is not about to change. On Friday the European parliament made its position crystal clear. My views on racism are crystal clear, so I assume there could be no question mark over my motivations. The sound was crystal clear, the music was haunting and soothing. This language of the plain and the crystal clear conceals the fact that we navigate in murky waters. Synonyms unambiguous, unmistakable, indisputable, incontrovertible, indubitable, undeniable Origin Late Old English (denoting ice or a mineral resembling it), from Old French cristal, from Latin crystallum, from Greek krustallos ‘ice, crystal’. The chemistry sense dates from the early 17th century. noun.1 phr.
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