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[dahy-as-ter] /daɪˈæs tər/
noun, Cell Biology.
the stage in mitosis at which the chromosomes, after their division and separation, are grouped near the poles of the spindle.
Origin of diaster
First recorded in 1880-85; di-1 + -aster2
Related forms
diastral, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for diaster


(cytology, rare) the stage in cell division at which the chromosomes are in two groups at the poles of the spindle before forming daughter nuclei
Derived Forms
diastral, adjective
Word Origin
C19: from di-1 + Greek astēr star
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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diaster in Medicine

diaster di·as·ter (dī-ās'tər)
See amphiaster.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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