'gene' definitions:

Definition of 'gene'

From: WordNet
noun
(genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity; "genes were formerly called factors" [syn: gene, cistron, factor]

Synonyms of 'gene'

From: Moby Thesaurus