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autosome

[aw-tuh-sohm]
noun Genetics.
  1. any chromosome other than a sex chromosome.
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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. 2018
British Dictionary definitions for autosome

autosome

noun
  1. any chromosome that is not a sex chromosome
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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.

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Online Etymology Dictionary, © 2010 Douglas Harper
autosome in Medicine

autosome

(ô′tə-sōm′)
n.
  1. A chromosome other than a sex chromosome, normally occurring in pairs in somatic cells and singly in gametes.
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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.