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aster

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noun as·ter \ˈas-tər\

Simple Definition of aster

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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of aster

  1. 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 b :  china aster

  2. 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

Illustration of aster

1664

First Known Use of aster

1664


-aster

noun suffix as·ter

Definition of -aster

  1. :  one that is inferior or not genuine <criticaster>



Origin and Etymology of -aster

Middle English, from Latin, suffix denoting partial resemblance


ASTER Defined for Kids

aster

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noun as·ter \ˈa-stər\

Definition of aster for Students

  1. :  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




Medical Dictionary

aster

play
noun as·ter \ˈas-tər\

Medical Definition of aster

  1. :  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



Illustration of aster


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