astrosphere

American

[as-truh-sfeer] / ˈæs trəˌsfɪər /

noun

Biology.

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

astrosphere British

/ ˈæstrəˌsfɪə /

noun

another name for centrosome
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

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