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

Definition of autosome

: a chromosome other than a sex chromosome

Keep scrolling for more

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, "The Making of a DNA Detective," 15 Feb. 2019 The rest, the autosomes, comes from all of one’s ancestors. Adam Rutherford, The Atlantic, "A New History of the First Peoples in the Americas," 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, "Genome Brings Ancient Girl to Life," 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.

See More

First Known Use of autosome

1906, in the meaning defined above

Keep scrolling for more

Learn More about autosome

Time Traveler for autosome

Time Traveler

The first known use of autosome was in 1906

See more words from the same year

Statistics for autosome

Cite this Entry

“Autosome.” Dictionary, Merriam-Webster, Accessed 6 Aug. 2020.

Keep scrolling for more

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 autosomal (audio) \ adjective
autosomally \ -​mə-​lē How to pronounce autosomally (audio) \ adverb

More from Merriam-Webster on autosome

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

Comments on autosome

What made you want to look up autosome? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

July 2020 Words of the Day Quiz

  • papercraft sunset
  • Which is a synonym of mien?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!