Source : Webster's Revised Unabridged Dictionary (1913)

Sphyraenoid \Sphy*r[ae]"noid\, a.[L. sphyraena a kind of sea
   fish (Gr. sfy`raina) + -oid.] (Zo["o]l.)
   Of or pertaining to the {Sphyr[ae]nid[ae]}, a family of
   marine fishes including the barracudas.