Definition of porous in English:

porous

adjective ˈpɔːrəsˈpɔrəs

1(of a rock or other material) having minute interstices through which liquid or air may pass.
（岩石或其他材料）有孔的，多孔的
layers of porous limestones
some rocks are more porous than others
Example sentencesExamples
- It is by nature a very porous material and often cannot be completely restored.
- An aquifer is an underground bed of earth, gravel or porous stone that stores water.
- This drainage system is made up of a lower layer of rough, nonporous material and an upper layer of porous soil and sand.
- The result is the formation of solid structures of a porous calcium carbonate rock also known as travertine.
- Moreover, they can also be seen as potential shape-selective catalysts by analogy with the porous minerals, zeolites.
- Since drywall is a porous material, it can absorb melted paraffin when immersed in it.
- We do very much the same sort of thing in reverse when we try to get oil out of porous rocks like sandstone and so on.
- They should not be used to vacuum porous materials, such as gypsum board.
- The ion exchanger is porous and allows for a solution to permeate through the material.
- A porous paper may absorb a lot of the ink and as a result, the colors may be lighter.
- Mudstones are the main source of oil and gas, although by the time the oil or gas is extracted it has usually migrated to porous rocks such as sandstones of limestones.
- Capillary action of the porous material pulls the ammonia borane into the pores of the support.
- Braising in wine or a highly-seasoned stock allows porous mushrooms to absorb other flavors.
- Coating a porous material like foam with this polymer makes it hydrophobic, so it won't absorb water.
- Most of the outer islands of the southern Tongass are made of limestone, a relatively soft, porous rock.
- You may even want to go over it with a primer if the material is porous.
- The active oxygen and water vapour permeate through the porous rubber structure of the tyre over time, gradually reducing pressure.
- A magnetic stir bar was placed in each chamber, separated from the root material by a porous metal screen.
- Another is a rounded piece of clinker, a porous material that results from the burning of coal seams.
- Most masonry materials are porous and will absorb large amounts of water.
Synonyms
permeable, penetrable, pervious
absorbent, sponge-like, spongy, sieve-like, leaky, honeycombed, cellular, open, holey
technical absorptive
rare percolative, cavernulous, leachy, porose, poriferous, spongiose, foraminous, pory
1. 1.1 Not retentive or secure.
  〈喻〉多漏洞的；不安全的
  he ran through a porous home defence to score easily
  他跑过一个漏洞百出的本垒防线，轻松地得了分。
  Example sentencesExamples
  He could not seem to hurt him, his defence was shockingly porous, and during most exchanges Sturm was a split-second ahead.
  What that would tell Woodward was all about the porous defences rather than exhilarating attacks.
  They won all the battles and and stiffened the defence which had been porous like in the first period.
  Is there tension between one of the league's perennially elite offenses and one of its most porous defenses?
  They'll be under, with a pretty porous defense and little help along the defensive line.
  The Australians had clearly targeted him and he lost the ball frequently in the tackle and was porous in defence.
  He chased down his own grubber to be the next man to take advantage of the porous Lancashire defence.
  Coming up next, how the man charged with this country's safety plans to secure our porous southern border.
  Their players are second to every ball, passes are going astray and their normally impenetrable defence is looking porous.
  The porous defense is beginning to come under attack by the pitching staff.
  This really shook the home side, whose own defence also looked a little on the porous side.
  His stock also has been hurt by being shuffled around a lot on a porous defense.
  Four veteran starters were signed as free agents to shore up the middle of the league's most porous defense.
  The captain's massive influence will be lost at a time when United's porous defence is allowing precious league points to leak away.
  Their defence has been porous since the start of the season but crucially it kept a clean sheet in the home victory over the Dutch last week.
  Not in the group stages of these two tournaments, however, did their defence appear so porous and their attack so unremarkable.
  The quick pace also has helped keep the porous defense more alert and involved.
  Injuries and a porous defense that has the team playing catch-up have led to disappointment.
  Injuries and a porous defense were the main culprits in the collapse.
  The team will focus on fundamentals in an effort to improve its porous run defense.

Derivatives

porosity

noun pɔːˈrɒsɪtipəˈrɑsədi

Soil structure, or the size and arrangement of particles, determines the porosity of the soil.
Example sentencesExamples
- To eventually translocate, cells must navigate the meshwork, the porosity of which can be smaller than the largest cell dimensions.
- The origin of the difference between the two species may be related to the fine structure of the roots, namely the porosity of Casparian bands.
- Soil aeration, porosity and water-holding capacity have been affected due to the reduced organic matter.
- When welding copper alloys containing these elements, porosity can be minimized by higher weld speeds and a filler metal low in these elements.

porously

adverb

porousness

noun ˈpɔːrəsnəsˈpɔrəsnəs

The porousness of the ‘nation’ as a category is most tellingly exhibited in the case of American subjects.
Example sentencesExamples
- Based on the data, they try to describe around 10 features, including the porousness of the rock, the size of the reservoir, and the degree to which the reservoir is saturated with water instead of oil.
- Given the porousness of U.S. borders and the volume of international traffic, sealing off the country would be a formidable task.
- By examining the porousness of this boundary, some otherwise-intuitive notions about the American consumer can be called into question.
- This is too neat to be true, and doesn't sufficiently acknowledge the porousness of the boundaries between fiction and life.
- The fact that it journeyed unimpeded to its final destination was offered as alarming proof of the porousness of our ports.
- There are obviously many degrees of cultural self-assertion, cultural defensiveness, cultural porousness and cultural boundaries.
- This respect for open-mindedness and open-endedness, this porousness at the borders, is, then, one of the most refreshing dimensions of the editorial voice in this volume.

Origin

Late Middle English: from Old French poreux, based on Latin porus 'pore'.

Rhymes

brachiosaurus, brontosaurus, canorous, chorus, Epidaurus, giganotosaurus, Horus, megalosaurus, pelorus, sorus, stegosaurus, Taurus, thesaurus, torus, tyrannosaurus

Definition of porous in US English:

porous

adjectiveˈpôrəsˈpɔrəs

1(of a rock or other material) having minute spaces or holes through which liquid or air may pass.
（岩石或其他材料）有孔的，多孔的
Example sentencesExamples
- A porous paper may absorb a lot of the ink and as a result, the colors may be lighter.
- An aquifer is an underground bed of earth, gravel or porous stone that stores water.
- Most masonry materials are porous and will absorb large amounts of water.
- Mudstones are the main source of oil and gas, although by the time the oil or gas is extracted it has usually migrated to porous rocks such as sandstones of limestones.
- This drainage system is made up of a lower layer of rough, nonporous material and an upper layer of porous soil and sand.
- You may even want to go over it with a primer if the material is porous.
- Braising in wine or a highly-seasoned stock allows porous mushrooms to absorb other flavors.
- The active oxygen and water vapour permeate through the porous rubber structure of the tyre over time, gradually reducing pressure.
- The result is the formation of solid structures of a porous calcium carbonate rock also known as travertine.
- Most of the outer islands of the southern Tongass are made of limestone, a relatively soft, porous rock.
- It is by nature a very porous material and often cannot be completely restored.
- Coating a porous material like foam with this polymer makes it hydrophobic, so it won't absorb water.
- Since drywall is a porous material, it can absorb melted paraffin when immersed in it.
- Capillary action of the porous material pulls the ammonia borane into the pores of the support.
- We do very much the same sort of thing in reverse when we try to get oil out of porous rocks like sandstone and so on.
- Moreover, they can also be seen as potential shape-selective catalysts by analogy with the porous minerals, zeolites.
- The ion exchanger is porous and allows for a solution to permeate through the material.
- A magnetic stir bar was placed in each chamber, separated from the root material by a porous metal screen.
- Another is a rounded piece of clinker, a porous material that results from the burning of coal seams.
- They should not be used to vacuum porous materials, such as gypsum board.
Synonyms
permeable, penetrable, pervious
1. 1.1 Not retentive or secure.
  〈喻〉多漏洞的；不安全的
  he ran through a porous defense to score easily
  他跑过一个漏洞百出的本垒防线，轻松地得了分。
  Example sentencesExamples
  Is there tension between one of the league's perennially elite offenses and one of its most porous defenses?
  They'll be under, with a pretty porous defense and little help along the defensive line.
  The team will focus on fundamentals in an effort to improve its porous run defense.
  He could not seem to hurt him, his defence was shockingly porous, and during most exchanges Sturm was a split-second ahead.
  He chased down his own grubber to be the next man to take advantage of the porous Lancashire defence.
  Their players are second to every ball, passes are going astray and their normally impenetrable defence is looking porous.
  Injuries and a porous defense were the main culprits in the collapse.
  His stock also has been hurt by being shuffled around a lot on a porous defense.
  Coming up next, how the man charged with this country's safety plans to secure our porous southern border.
  The captain's massive influence will be lost at a time when United's porous defence is allowing precious league points to leak away.
  The porous defense is beginning to come under attack by the pitching staff.
  The Australians had clearly targeted him and he lost the ball frequently in the tackle and was porous in defence.
  Four veteran starters were signed as free agents to shore up the middle of the league's most porous defense.
  This really shook the home side, whose own defence also looked a little on the porous side.
  Injuries and a porous defense that has the team playing catch-up have led to disappointment.
  What that would tell Woodward was all about the porous defences rather than exhilarating attacks.
  The quick pace also has helped keep the porous defense more alert and involved.
  Their defence has been porous since the start of the season but crucially it kept a clean sheet in the home victory over the Dutch last week.
  They won all the battles and and stiffened the defence which had been porous like in the first period.
  Not in the group stages of these two tournaments, however, did their defence appear so porous and their attack so unremarkable.

Origin

Late Middle English: from Old French poreux, based on Latin porus ‘pore’.

词汇	porous
释义	Definition of porous in English: porous adjective ˈpɔːrəsˈpɔrəs 1(of a rock or other material) having minute interstices through which liquid or air may pass. （岩石或其他材料）有孔的，多孔的 layers of porous limestones some rocks are more porous than others Example sentencesExamples It is by nature a very porous material and often cannot be completely restored. An aquifer is an underground bed of earth, gravel or porous stone that stores water. This drainage system is made up of a lower layer of rough, nonporous material and an upper layer of porous soil and sand. The result is the formation of solid structures of a porous calcium carbonate rock also known as travertine. Moreover, they can also be seen as potential shape-selective catalysts by analogy with the porous minerals, zeolites. Since drywall is a porous material, it can absorb melted paraffin when immersed in it. We do very much the same sort of thing in reverse when we try to get oil out of porous rocks like sandstone and so on. They should not be used to vacuum porous materials, such as gypsum board. The ion exchanger is porous and allows for a solution to permeate through the material. A porous paper may absorb a lot of the ink and as a result, the colors may be lighter. Mudstones are the main source of oil and gas, although by the time the oil or gas is extracted it has usually migrated to porous rocks such as sandstones of limestones. Capillary action of the porous material pulls the ammonia borane into the pores of the support. Braising in wine or a highly-seasoned stock allows porous mushrooms to absorb other flavors. Coating a porous material like foam with this polymer makes it hydrophobic, so it won't absorb water. Most of the outer islands of the southern Tongass are made of limestone, a relatively soft, porous rock. You may even want to go over it with a primer if the material is porous. The active oxygen and water vapour permeate through the porous rubber structure of the tyre over time, gradually reducing pressure. A magnetic stir bar was placed in each chamber, separated from the root material by a porous metal screen. Another is a rounded piece of clinker, a porous material that results from the burning of coal seams. Most masonry materials are porous and will absorb large amounts of water. Synonyms permeable, penetrable, pervious absorbent, sponge-like, spongy, sieve-like, leaky, honeycombed, cellular, open, holey technical absorptive rare percolative, cavernulous, leachy, porose, poriferous, spongiose, foraminous, pory 1.1 Not retentive or secure. 〈喻〉多漏洞的；不安全的 he ran through a porous home defence to score easily 他跑过一个漏洞百出的本垒防线，轻松地得了分。 Example sentencesExamples He could not seem to hurt him, his defence was shockingly porous, and during most exchanges Sturm was a split-second ahead. What that would tell Woodward was all about the porous defences rather than exhilarating attacks. They won all the battles and and stiffened the defence which had been porous like in the first period. Is there tension between one of the league's perennially elite offenses and one of its most porous defenses? They'll be under, with a pretty porous defense and little help along the defensive line. The Australians had clearly targeted him and he lost the ball frequently in the tackle and was porous in defence. He chased down his own grubber to be the next man to take advantage of the porous Lancashire defence. Coming up next, how the man charged with this country's safety plans to secure our porous southern border. Their players are second to every ball, passes are going astray and their normally impenetrable defence is looking porous. The porous defense is beginning to come under attack by the pitching staff. This really shook the home side, whose own defence also looked a little on the porous side. His stock also has been hurt by being shuffled around a lot on a porous defense. Four veteran starters were signed as free agents to shore up the middle of the league's most porous defense. The captain's massive influence will be lost at a time when United's porous defence is allowing precious league points to leak away. Their defence has been porous since the start of the season but crucially it kept a clean sheet in the home victory over the Dutch last week. Not in the group stages of these two tournaments, however, did their defence appear so porous and their attack so unremarkable. The quick pace also has helped keep the porous defense more alert and involved. Injuries and a porous defense that has the team playing catch-up have led to disappointment. Injuries and a porous defense were the main culprits in the collapse. The team will focus on fundamentals in an effort to improve its porous run defense. Derivatives porosity noun pɔːˈrɒsɪtipəˈrɑsədi Soil structure, or the size and arrangement of particles, determines the porosity of the soil. Example sentencesExamples To eventually translocate, cells must navigate the meshwork, the porosity of which can be smaller than the largest cell dimensions. The origin of the difference between the two species may be related to the fine structure of the roots, namely the porosity of Casparian bands. Soil aeration, porosity and water-holding capacity have been affected due to the reduced organic matter. When welding copper alloys containing these elements, porosity can be minimized by higher weld speeds and a filler metal low in these elements. porously adverb porousness noun ˈpɔːrəsnəsˈpɔrəsnəs The porousness of the ‘nation’ as a category is most tellingly exhibited in the case of American subjects. Example sentencesExamples Based on the data, they try to describe around 10 features, including the porousness of the rock, the size of the reservoir, and the degree to which the reservoir is saturated with water instead of oil. Given the porousness of U.S. borders and the volume of international traffic, sealing off the country would be a formidable task. By examining the porousness of this boundary, some otherwise-intuitive notions about the American consumer can be called into question. This is too neat to be true, and doesn't sufficiently acknowledge the porousness of the boundaries between fiction and life. The fact that it journeyed unimpeded to its final destination was offered as alarming proof of the porousness of our ports. There are obviously many degrees of cultural self-assertion, cultural defensiveness, cultural porousness and cultural boundaries. This respect for open-mindedness and open-endedness, this porousness at the borders, is, then, one of the most refreshing dimensions of the editorial voice in this volume. Origin Late Middle English: from Old French poreux, based on Latin porus 'pore'. Rhymes brachiosaurus, brontosaurus, canorous, chorus, Epidaurus, giganotosaurus, Horus, megalosaurus, pelorus, sorus, stegosaurus, Taurus, thesaurus, torus, tyrannosaurus Definition of porous in US English: porous adjectiveˈpôrəsˈpɔrəs 1(of a rock or other material) having minute spaces or holes through which liquid or air may pass. （岩石或其他材料）有孔的，多孔的 Example sentencesExamples A porous paper may absorb a lot of the ink and as a result, the colors may be lighter. An aquifer is an underground bed of earth, gravel or porous stone that stores water. Most masonry materials are porous and will absorb large amounts of water. Mudstones are the main source of oil and gas, although by the time the oil or gas is extracted it has usually migrated to porous rocks such as sandstones of limestones. This drainage system is made up of a lower layer of rough, nonporous material and an upper layer of porous soil and sand. You may even want to go over it with a primer if the material is porous. Braising in wine or a highly-seasoned stock allows porous mushrooms to absorb other flavors. The active oxygen and water vapour permeate through the porous rubber structure of the tyre over time, gradually reducing pressure. The result is the formation of solid structures of a porous calcium carbonate rock also known as travertine. Most of the outer islands of the southern Tongass are made of limestone, a relatively soft, porous rock. It is by nature a very porous material and often cannot be completely restored. Coating a porous material like foam with this polymer makes it hydrophobic, so it won't absorb water. Since drywall is a porous material, it can absorb melted paraffin when immersed in it. Capillary action of the porous material pulls the ammonia borane into the pores of the support. We do very much the same sort of thing in reverse when we try to get oil out of porous rocks like sandstone and so on. Moreover, they can also be seen as potential shape-selective catalysts by analogy with the porous minerals, zeolites. The ion exchanger is porous and allows for a solution to permeate through the material. A magnetic stir bar was placed in each chamber, separated from the root material by a porous metal screen. Another is a rounded piece of clinker, a porous material that results from the burning of coal seams. They should not be used to vacuum porous materials, such as gypsum board. Synonyms permeable, penetrable, pervious 1.1 Not retentive or secure. 〈喻〉多漏洞的；不安全的 he ran through a porous defense to score easily 他跑过一个漏洞百出的本垒防线，轻松地得了分。 Example sentencesExamples Is there tension between one of the league's perennially elite offenses and one of its most porous defenses? They'll be under, with a pretty porous defense and little help along the defensive line. The team will focus on fundamentals in an effort to improve its porous run defense. He could not seem to hurt him, his defence was shockingly porous, and during most exchanges Sturm was a split-second ahead. He chased down his own grubber to be the next man to take advantage of the porous Lancashire defence. Their players are second to every ball, passes are going astray and their normally impenetrable defence is looking porous. Injuries and a porous defense were the main culprits in the collapse. His stock also has been hurt by being shuffled around a lot on a porous defense. Coming up next, how the man charged with this country's safety plans to secure our porous southern border. The captain's massive influence will be lost at a time when United's porous defence is allowing precious league points to leak away. The porous defense is beginning to come under attack by the pitching staff. The Australians had clearly targeted him and he lost the ball frequently in the tackle and was porous in defence. Four veteran starters were signed as free agents to shore up the middle of the league's most porous defense. This really shook the home side, whose own defence also looked a little on the porous side. Injuries and a porous defense that has the team playing catch-up have led to disappointment. What that would tell Woodward was all about the porous defences rather than exhilarating attacks. The quick pace also has helped keep the porous defense more alert and involved. Their defence has been porous since the start of the season but crucially it kept a clean sheet in the home victory over the Dutch last week. They won all the battles and and stiffened the defence which had been porous like in the first period. Not in the group stages of these two tournaments, however, did their defence appear so porous and their attack so unremarkable. Origin Late Middle English: from Old French poreux, based on Latin porus ‘pore’.
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