[ am-fee-as-ter ]
/ ˈæm fiˌæs tər /

noun Cell Biology.

the achromatic spindle with two asters that forms during mitosis.

Origin of amphiaster

First recorded in 1880–85; amphi- + -aster2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for amphiaster

British Dictionary definitions for amphiaster


/ (ˈæmfɪˌæstə) /


cytology the structure that occurs in a cell undergoing mitosis, consisting of a spindle with an aster at each end

Word Origin for amphiaster

C19: from amphi- + New Latin aster; see aster
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

Medicine definitions for amphiaster


[ ămfē-ăs′tər ]


A double-star figure present in the cell during mitosis, consisting of two astrospheres connected by a spindle, formed just before the division of the nucleus.diaster
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.