Perciformes

from WordNet (r) 3.0 (2006)

Perciformes
    n 1: one of the largest natural groups of fishes of both marine
         and fresh water: true perches; basses; tuna [syn:
         {Perciformes}, {order Perciformes}, {Percomorphi}, {order
         Percomorphi}]

from The Collaborative International Dictionary of English v.0.48

Perciformes \Per`ci*for"mes\, n. pl. [NL.] (Zool.)
   An extensive order of fishes, including the true perches
   ({Percid[ae]}); the pondfishes ({Centrarchid[ae]}); the
   sci[ae]noids ({Sci[ae]nid[ae]}); the sparoids ({Sparid[ae]});
   the serranoids ({Serranid[ae]}), and some other related
   families.
   [1913 Webster] Percipience