1. any chromosome that is not a sex chromosome; appear in pairs in body cells but as single chromosomes in spermatozoa; [syn: autosome, somatic chromosome]
WordNet (r) 3.0 (2006):
autosome
n 1: any chromosome that is not a sex chromosome; appear in
pairs in body cells but as single chromosomes in
spermatozoa [syn: autosome, somatic chromosome]