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autosome

[aw-tuh-sohm]

noun Genetics.

any chromosome other than a sex chromosome.

Origin of autosome

First recorded in 1905–10; auto-1 + -some3
Also called euchromosome.
Related formsau·to·so·mal, adjectiveau·to·so·mal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for autosome

autosome

noun

any chromosome that is not a sex chromosome
Derived Formsautosomal, adjective
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
Word Origin and History for autosome
n.

coined 1906 by U.S. cytologist T.H. Montgomery (1873-1912), from auto- + -some (3)). Related: Autosomal.

Online Etymology Dictionary, © 2010 Douglas Harper
autosome in Medicine

autosome

[ô′tə-sōm′]

n.

A chromosome other than a sex chromosome, normally occurring in pairs in somatic cells and singly in gametes.
Related formsau′to•so′mal (-sō′məl) adj.au′to•so′mal•ly adv.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.