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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“All these connections somehow unite to form our habitable astrosphere,” Provornikova says.

From Scientific American

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