Illustration of aster
- aster 1a
1
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
b
2
: a system of microtubules arranged radially about a centriole at either end of the mitotic or meiotic spindle
: one that is inferior or not genuine
criticaster
Examples of aster in a Sentence
Recent Examples on the Web
Miri Talabac, Baltimore Sun, 25 July 2024
Other than coleus, the Victorians enjoyed using colorful flowers such as petunias, asters, and zinnias as carpet bedding.
—Abigayle Ward, Hartford Courant, 20 July 2024
Some excellent examples include fall-blooming asters, chrysanthemums, and butterfly bushes.
—Paul Cappiello, The Courier-Journal, 21 June 2024
Popular native aster family perennials include aster (Symphyotrichum, Eurybia, and a few other genera), blazing-star (Liatris), sunflowers (Helianthus), Joe-Pye weed and kin (Eupatorium, Eutrochium, Conoclinium), sneezeweed (Helenium), and goldenrods (Solidago, Euthamia).
—Miri Talabac, Baltimore Sun, 20 June 2024
See all Example Sentences for aster 
Noun
Favored blooms are those in the mint and aster families, like Joe-Pye weeds and Thoroughworts (Eutrochium and Eupatorium), goldenrods (Solidago and Euthamia), wingstem (Verbesina), and in the photo, culinary mint.
—Miri Talabac, Baltimore Sun, 25 July 2024
Other than coleus, the Victorians enjoyed using colorful flowers such as petunias, asters, and zinnias as carpet bedding.
—Abigayle Ward, Hartford Courant, 20 July 2024
Some excellent examples include fall-blooming asters, chrysanthemums, and butterfly bushes.
—Paul Cappiello, The Courier-Journal, 21 June 2024
Popular native aster family perennials include aster (Symphyotrichum, Eurybia, and a few other genera), blazing-star (Liatris), sunflowers (Helianthus), Joe-Pye weed and kin (Eupatorium, Eutrochium, Conoclinium), sneezeweed (Helenium), and goldenrods (Solidago, Euthamia).
—Miri Talabac, Baltimore Sun, 20 June 2024
See all Example Sentences for aster
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Cite this Entry
“Aster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aster. Accessed 19 Aug. 2024.
Copy CitationKids Definition
aster
noun
as·ter
ˈas-tər 
: any of various mostly fall-blooming leafy-stemmed herbs related to the daisies usually with showy white, pink, purple, or yellow flower heads
Medical Definition
aster
noun
as·ter
ˈas-tər
: 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
Gerald Karp, Cell and Molecular Biology: Concepts and Experiments, 6th editioncalled also cytaster
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