scom·broid 
(skŏmbroid′)
(skŏmbroid′)n.
Any of various marine fishes of the suborder Scombroidei, which includes the barracudas, mackerels, and tunas.
[New Latin Scombroīdeī, suborder name, from Latin scomber, scombr-, mackerel, from Greek skombros, probably of pre-Greek substrate origin.]
scombroid′ adj.