• (a.) Like, or pertaining to, the Salmonidae, a family of fishes including the trout and salmon. • (n.) Any fish of the family Salmonidae.
Sal'mon·oid adjective [ Salmon + -oid .] (Zoology) Like, or pertaining to, the Salmonidæ , a family of fishes including the trout and salmon. -- noun Any fish of the family Salmonidæ .