The Collaborative International Dictionary of English v.0.48:

Cyprinoid \Cyp"ri*noid\ (s?p"r?-noid), a. [Gr. ???? a kind of
   carp + -oid.] (Zool.)
   Like the carp (Cyprinus). -- n. One of the Cyprinidae, or
   Carp family, as the goldfish, barbel, etc.
   [1913 Webster]

WordNet (r) 3.0 (2006):

cyprinoid
    adj 1: of or relating to members of fish family Cyprinidae [syn:
           cyprinid, cyprinoid]