autosome vs somatic chromosome

autosome and somatic chromosome both are nouns.

Word	Noun	Adjective	Verb	Adverb
autosome	Yes	No	No	No
somatic chromosome	Yes	No	No	No

As nouns, autosome and somatic chromosome are synonyms defined as:

autosome and somatic chromosome: any chromosome that is not a sex chromosome; appear in pairs in body cells but as single chromosomes in spermatozoa

autosome (noun)	somatic chromosome (noun)
any chromosome that is not a sex chromosome; appear in pairs in body cells but as single chromosomes in spermatozoa	any chromosome that is not a sex chromosome; appear in pairs in body cells but as single chromosomes in spermatozoa