-aster - The Dictionary

aster-(word root) starExamples of words with the root aster-: asteroidAbused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embreeas·ter (?s?t?r)n.1. Any of various plants of the genus Aster or closely related genera in the composite family, having radiate flower heads with white, pink, or violet rays and usually a yellow disk.2. The China aster.3. Biology A star-shaped structure formed in the cytoplasm of an animal cell during mitosis, having raylike microtubules that surround the centrosome.[Latin ast?r, a type of plant, from Greek, star, type of daisy; see ster- in Indo-European roots.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.aster (?æst?) n1. (Plants) any plant of the genus Aster, having white, blue, purple, or pink daisy-like flowers: family Asteraceae (composites). Compare golden aster2. (Plants) China aster a related Chinese plant, Callistephus chinensis, widely cultivated for its showy brightly coloured flowers3. (Biology) cytology a group of radiating microtubules that surrounds the centrosome before and during mitosis[C18: from New Latin, from Latin aster star, from Greek]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014as?ter (?æs t?r) n. 1. any composite plant of the genus Aster, having rays varying from white or pink to blue around a yellow disk. 2. a plant of some allied genus, as the China aster. 3. a structure formed in a cell during mitosis, composed of astral rays radiating about the centrosome. [1595?1605;