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astrosphere

American  
[as-truh-sfeer] / ˈæs trəˌsfɪər /

noun

Biology.

  1. the central portion of an aster, in which the centrosome lies.

  2. the whole aster exclusive of the centrosome.

astrosphere British  
/ ˈæstrəˌsfɪə /

noun

  1. another name for centrosome

  2. Also called: attraction sphere.  the part of the aster excluding the centrosome

"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

Etymology

Origin of astrosphere

First recorded in 1895–1900; astro- + sphere

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.