From The Collaborative International Dictionary of English v.0.48 :
centrarchid \centrarchid\ n. any of a group of small carnivorous freshwater percoid fishes of North America usually having a laterally compressed body and metallic luster: crappies; black bass; bluegills; pumpkinseed. Syn: sunfish. [WordNet 1.5]From WordNet (r) 3.0 (2006) :
centrarchid n 1: small carnivorous freshwater percoid fishes of North America usually having a laterally compressed body and metallic luster: crappies; black bass; bluegills; pumpkinseed [syn: sunfish, centrarchid]