cardiidae

from WordNet (r) 3.0 (2006)

Cardiidae
    n 1: somewhat heart-shaped sand-burrowing bivalve mollusks [syn:
         {Cardiidae}, {family Cardiidae}]

from The Collaborative International Dictionary of English v.0.48

Cardiidae \Cardiidae\ n.
   a natural family of somewhat heart-shaped sand-burrowing
   bivalve mollusks.

   Syn: family {Cardiidae}.
        [WordNet 1.5]