Pomacentroid \Po`ma*cen"troid\, a. [Gr. ? a cover + ? a prickle + -oid.] (Zo["o]l.) Pertaining to the {Pomacentrid[ae]}, a family of bright-colored tropical fishes having spiny opercula; -- often called {coral fishes}.
Pomacentridae n : damselfishes [syn: {family Pomacentridae}]