Search Result for "ventral fin":
Wordnet 3.0

NOUN (1)

1. either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate;
[syn: pelvic fin, ventral fin]



WordNet (r) 3.0 (2006):

ventral fin
    n 1: either of a pair of fins attached to the pelvic girdle in
         fishes that help control the direction of movement;
         correspond to hind limbs of a land vertebrate [syn: pelvic
         fin, ventral fin]