The Collaborative International Dictionary of English v.0.48:

characid \characid\ n.
   any freshwater fish of the family Characinidae; -- also
   called characin.

   Syn: characin, characin fish.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

characin \characin\ n.
   any freshwater fish of the family Characinidae; -- also
   called characid.

   Syn: characin fish, characid.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

characin
    n 1: any freshwater fish of the family Characinidae [syn:
         characin, characin fish, characid]