1 aster | Definition of aster

aster

noun
as·​ter | \ ˈas-tÉ™r How to pronounce aster (audio) \

Definition of aster

 (Entry 1 of 2)

1 [ New Latin, from Latin, aster, from Greek aster-, astēr star, aster — more at star ]

a : any of various chiefly fall-blooming leafy-stemmed composite herbs (Aster and closely related genera) with often showy heads containing disk flowers or both disk and ray flowers
2 [ New Latin, from Greek aster-, astēr ] : a system of microtubules arranged radially about a centriole at either end of the mitotic or meiotic spindle

-aster

noun suffix

Definition of -aster (Entry 2 of 2)

: one that is inferior or not genuine criticaster

Illustration of aster

Illustration of aster

Noun

aster 1a

In the meaning defined above

Examples of aster in a Sentence

Recent Examples on the Web: Noun

Mums, asters, toad lily (Tricyrtis spp.) and rudbeckias will soon be taking center stage, so attention to watering will help with their performance. Jo Ellen Meyers Sharp, Indianapolis Star, "The Hoosier Gardener: The sun is a blessing and a curse in the garden," 1 Aug. 2019 Done introducing the goldenrod to the roadside society of asters. Jessica Hornik, National Review, "August," 25 July 2019 Purple asters, face-size Queen Anne’s lace, pink morning glories, blurs of yellow, bursts of blooming cacti, and tumbles of vulgar magenta bougainvillea. Frances Mayes, National Geographic, "Discover Italy’s most delicious secret," 11 July 2019 Other good nectar sources for butterflies are duranta, lantana, salvia, Mexican flame vine, mint marigold, and fall aster. Calvin Finch, ExpressNews.com, "Purple martins are on the move," 5 July 2019 Mums and asters will bloom in summer unless the flower buds are pinched or cut. Betty Cahill, The Denver Post, "Ten tips to ensure a healthy lawn during a Colorado summer," 27 June 2019 Billows of lavender asters float among Miscanthus sinensis‘Saturnia’ (a Le Jardin Plume introduction), whose green blades explode into gold, amber and bronze come fall. Amy Merrick, WSJ, "Fall’s Best Blade Plans," 5 Oct. 2018 Georgia, for example, is a mix of peaches, magnolias, asters, and sweet tea. Brittney Morgan, House Beautiful, "Homesick Candles Smell Just Like Your Favorite Childhood Memories," 21 Aug. 2018 For existing broadleaf weeds such as clover, dandelions, dichondra, poison ivy, roadside asters and others, use a broadleaf weed killer containing 2,4-D. Apply it according to label directions for best results. Neil Sperry, star-telegram, "If your yard is in the weeds, here are some tips to control them | Fort Worth Star-Telegram," 17 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aster.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of aster

Noun

1664, in the meaning defined at sense 1a

History and Etymology for aster

Noun suffix

Middle English, from Latin, suffix denoting partial resemblance

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More Definitions for aster

aster

noun

English Language Learners Definition of aster

: a type of plant that is grown in gardens for its colorful flowers

aster

noun
as·​ter | \ ˈa-stÉ™r How to pronounce aster (audio) \

Kids Definition of aster

: any of various herbs related to the daisies that have leafy stems and white, pink, purple, or yellow flower heads which bloom in the fall

aster

noun
as·​ter | \ ˈas-tÉ™r How to pronounce aster (audio) \

Medical Definition of aster

: a system of microtubules arranged in rays around a centriole at either end of the mitotic or meiotic spindle The first stage in the formation of the mitotic spindle in a typical animal cell is the appearance of microtubules in a "sunburst" arrangement, or aster, around each centrosome during early prophase. — Gerald Karp, Cell and Molecular Biology: Concepts and Experiments, 6th edition, 2010

called also cytaster

More from Merriam-Webster on aster

Rhyming Dictionary: Words that rhyme with aster

Spanish Central: Translation of aster

Nglish: Translation of aster for Spanish Speakers