au·​to·​some | \ ˈȯ-tə-ˌsōm How to pronounce autosome (audio) \

Definition of autosome

: a chromosome other than a sex chromosome

Examples of autosome in a Sentence

Recent Examples on the Web Law enforcement also tested 20 or so genetic markers from autosomes—nonsex chromosomes, which are inherited from both parents. Allysia Finley, WSJ, 15 Feb. 2019 The rest, the autosomes, comes from all of one’s ancestors. Adam Rutherford, The Atlantic, 3 Oct. 2017 Furthermore, the team determined that Papuans have more Denisovan DNA on their autosomes, inherited equally often from both parents, than on their X chromosomes, inherited twice as often from the mother. Sciencenow, WIRED, 31 Aug. 2012

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'autosome.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of autosome

1906, in the meaning defined above

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The first known use of autosome was in 1906

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Cite this Entry

“Autosome.” Dictionary, Merriam-Webster, Accessed 3 Oct. 2022.

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More Definitions for autosome


au·​to·​some | \ ˈȯt-ə-ˌsōm How to pronounce autosome (audio) \

Medical Definition of autosome

: a chromosome other than a sex chromosome

called also nonsex chromosome

— compare allosome

Other Words from autosome

autosomal \ ˌȯt-​ə-​ˈsō-​məl How to pronounce autosome (audio) \ adjective
autosomally \ -​mə-​lē How to pronounce autosome (audio) \ adverb

More from Merriam-Webster on autosome

Britannica English: Translation of autosome for Arabic Speakers Encyclopedia article about autosome


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