9 Grammatical Pitfalls


[aw-tuh-sohm] /ˈɔ təˌsoʊm/
noun, Genetics.
any chromosome other than a sex chromosome.
Also called euchromosome.
Origin of autosome
1905-10; auto-1 + -some3
Related forms
autosomal, adjective
autosomally, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for autosomal
  • It may be inherited as an autosomal dominant or autosomal recessive trait.
  • The disease is an autosomal recessive genetic disorder.
  • In autosomal dominant nocturnal frontal lobe epilepsy, a rare inherited form, seizures often occur during sleep.
  • Multiple lentigines syndrome is inherited as an autosomal dominant trait.
  • The condition is inherited in an autosomal dominant pattern.
  • Unlike the autosomal genome there's no reticulation.
British Dictionary definitions for autosomal


any chromosome that is not a sex chromosome
Derived Forms
autosomal, 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
Cite This Source
Word Origin and History for autosomal



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

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
autosomal in Medicine

autosome au·to·some (ô'tə-sōm')
A chromosome other than a sex chromosome, normally occurring in pairs in somatic cells and singly in gametes.

au'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.
Cite This Source

Word of the Day

Difficulty index for autosome

Few English speakers likely know this word

Word Value for autosomal

Scrabble Words With Friends