Barracuda

from WordNet (r) 3.0 (2006)

barracuda
    n 1: any voracious marine fish of the genus Sphyraena having an
         elongated cylindrical body and large mouth with projecting
         lower jaw and long strong teeth

from The Collaborative International Dictionary of English v.0.48

Barracuda \Bar`ra*cu"da\, Barracouta \Bar`ra*cou"ta\,, n.
   [Native name.] (Zool.)
   Any of several voracious pikelike marine fishes allied to the
   gray mullets, constituting the genus {Sphyr[ae]na} and family
   {Sphyr[ae]nid[ae]}. The great barracuda ({Sphyr[ae]na
   barracuda}) of the West Indies, Florida, etc., is often six
   feet or more long, and as dangerous as a shark. In Cuba its
   flesh is reputed to be poisonous. {Sphyr[ae]na Argentea} of
   the Pacific coast and {Sphyr[ae]na sphyr[ae]na} of Europe are
   smaller species, and are used as food.
   [Webster 1913 Suppl.]

   Note: That of Europe and our Atlantic coast is {Sphyr[ae]na
         spet} (or {Sphyr[ae]na vulgaris}); a southern species
         is {Sphyr[ae]na picuda}; the Californian is
         {Sphyr[ae]na argentea}.
         [1913 Webster]

   2. (Zool.) A large edible fresh-water fish of Australia and
      New Zealand ({Thyrsites atun}).
      [1913 Webster]