percoid

from WordNet (r) 3.0 (2006)

percoid
    n 1: any of numerous spiny-finned fishes of the order
         Perciformes [syn: {percoid fish}, {percoid}, {percoidean}]

from The Collaborative International Dictionary of English v.0.48

Percoid \Per"coid\ (p[~e]r"koid), a. [L. perca a perch + -oid:
   cf. F. perco["i]de.] (Zool.)
   Belonging to, or resembling, the perches, or family
   {Percid[ae]}. -- n. Any fish of the genus {Perca}, or allied
   genera of the family {Percid[ae]}; a percoidean.
   [1913 Webster]