Definition of aster in English:
aster
noun ˈastəˈæstər
1A plant of a large genus that includes the Michaelmas daisy, typically having purple or pink rayed flowers.
紫菀属植物Genus Aster, family Compositae: numerous species. See also China aster
- These asters make excellent backdrops for larger flowers in bouquets, but we also like letting them shine on their own - toward the fronts of borders or in small, densely planted beds.
- When new leaves appear, divide asters, bellflowers, chrysanthemums, daylilies, sedums, Shasta daisies, and yarrow.
- Butterflies feasted on purple asters, and dragonflies zigzagged over the buttonbushes, which bore a crop of round, dry fruits.
- Among the favorites are asters and daisies, milkweeds, mustards, mints, peas, and vervains.
- Purple asters bloom in fall, attracting monarch butterflies and providing one last blast of color when many blooms have faded.
- The aster is considered the other classic autumn flower.
- The fastest-growing asters require yearly division in spring.
- Then, long after the foxgloves have withered and the last crabapple has rolled from the tree and been carted off by a brown squirrel, the asters bloom, the last flower before snow.
- Crabgrass and plantain are an indication of acidic soil, while wood asters and poppies prefer alkaline soil.
- As tender perennials are damaged by frost, remove them and pop in fall-blooming asters, chrysanthemums, and pansies.
- Roses, pansies, perennial asters, zinnias and even weeds become mildewed.
- There are flowers everywhere in a carpet of colour: orange globemallows and white asters and purple lupins.
- Sow annual flowers such as asters, cosmos, zinnias and marigolds as soon as the frost has passed and the air begins to warm up.
- Not long after we moved from our small, shady city lot to a sprawling sunny piece of land in the country, we were rewarded by a visit from a flock of monarch butterflies that stopped to feed at a plot of wild asters.
- After a bit of a summer lull, the blues of woodland asters and the yellows of woodland goldenrods render the forest vibrant in late August.
- As with other members of the daisy family, annual aster flowers are composed of many long, slender petals radiating from a central disc of bright yellow.
- Small-flowered plants such as asters, coral bells, nemesia, and yarrow are great fillers.
- Plant late-blooming asters behind shorter perennials to hide the damage until they finish blooming.
- After the first hard freeze, cut back perennials such as aster, campanula, daylily, phlox, and veronica, leaving 6-inch stubs above the ground.
- But asters also come in a full range of reds and pinks, plus white.
2Biology
A radiating array of microtubules associated with a centrosome in a dividing cell.- Such abnormalities can be due to abnormalities in the number of asters and spindle structures at earlier stages of meiosis.
- Each centriole now consists of a pair of protein bodies surrounded by radiating strands of protein called the aster.
- The most interesting aster configuration occurs when the spindle is parallel to the surface.
- Before mitosis, the centrosome becomes duplicated and the daughter centrosomes move to opposite sides of the nucleus and form asters.
- Meiosis is completed shortly after ovulation, concomitant with the formation of an extensive sperm aster nucleated by the sperm-derived centrosome.
Origin
Early 17th century (in the sense 'a star'): via Latin from Greek astēr 'star'.
Rhymes
Antofagasta, Astor, canasta, Jocasta, oleaster, pasta, piastre (US piaster), pilaster, poetaster, Rasta, Zoroaster
Definition of aster in US English:
aster
nounˈastərˈæstər
1A plant of the daisy family that has bright rayed flowers, typically of purple or pink.
Genus Aster, family Compositae: numerous species, many of which bloom in autumn, including the wild purple New England aster (A. novae-angliae). See also China aster
- But asters also come in a full range of reds and pinks, plus white.
- Among the favorites are asters and daisies, milkweeds, mustards, mints, peas, and vervains.
- Then, long after the foxgloves have withered and the last crabapple has rolled from the tree and been carted off by a brown squirrel, the asters bloom, the last flower before snow.
- Roses, pansies, perennial asters, zinnias and even weeds become mildewed.
- Purple asters bloom in fall, attracting monarch butterflies and providing one last blast of color when many blooms have faded.
- Crabgrass and plantain are an indication of acidic soil, while wood asters and poppies prefer alkaline soil.
- The fastest-growing asters require yearly division in spring.
- After a bit of a summer lull, the blues of woodland asters and the yellows of woodland goldenrods render the forest vibrant in late August.
- Small-flowered plants such as asters, coral bells, nemesia, and yarrow are great fillers.
- After the first hard freeze, cut back perennials such as aster, campanula, daylily, phlox, and veronica, leaving 6-inch stubs above the ground.
- Plant late-blooming asters behind shorter perennials to hide the damage until they finish blooming.
- Sow annual flowers such as asters, cosmos, zinnias and marigolds as soon as the frost has passed and the air begins to warm up.
- Not long after we moved from our small, shady city lot to a sprawling sunny piece of land in the country, we were rewarded by a visit from a flock of monarch butterflies that stopped to feed at a plot of wild asters.
- As with other members of the daisy family, annual aster flowers are composed of many long, slender petals radiating from a central disc of bright yellow.
- The aster is considered the other classic autumn flower.
- Butterflies feasted on purple asters, and dragonflies zigzagged over the buttonbushes, which bore a crop of round, dry fruits.
- These asters make excellent backdrops for larger flowers in bouquets, but we also like letting them shine on their own - toward the fronts of borders or in small, densely planted beds.
- As tender perennials are damaged by frost, remove them and pop in fall-blooming asters, chrysanthemums, and pansies.
- There are flowers everywhere in a carpet of colour: orange globemallows and white asters and purple lupins.
- When new leaves appear, divide asters, bellflowers, chrysanthemums, daylilies, sedums, Shasta daisies, and yarrow.
2Biology
A radiating array of microtubules associated with a centrosome in a dividing cell.- Before mitosis, the centrosome becomes duplicated and the daughter centrosomes move to opposite sides of the nucleus and form asters.
- Such abnormalities can be due to abnormalities in the number of asters and spindle structures at earlier stages of meiosis.
- The most interesting aster configuration occurs when the spindle is parallel to the surface.
- Each centriole now consists of a pair of protein bodies surrounded by radiating strands of protein called the aster.
- Meiosis is completed shortly after ovulation, concomitant with the formation of an extensive sperm aster nucleated by the sperm-derived centrosome.
Origin
Early 17th century (in the sense ‘a star’): via Latin from Greek astēr ‘star’.