Noun | 1. | ![]() mollusc, mollusk, shellfish - invertebrate having a soft unsegmented body usually enclosed in a shell Bivalvia, class Bivalvia, class Lamellibranchia, class Pelecypoda, Lamellibranchia - oysters; clams; scallops; mussels clam - burrowing marine mollusk living on sand or mud; the shell closes with viselike firmness cockle - common edible, burrowing European bivalve mollusk that has a strong, rounded shell with radiating ribs oyster - marine mollusks having a rough irregular shell; found on the sea bed mostly in coastal waters ark shell - marine bivalve mollusk having a heavy toothed shell with a deep boat-like inner surface blood clam - red-blooded clam mussel - marine or freshwater bivalve mollusk that lives attached to rocks etc. escallop, scollop, scallop - edible marine bivalve having a fluted fan-shaped shell that swim by expelling water from the shell in a series of snapping motions piddock - marine bivalve that bores into rock or clay or wood by means of saw-like shells |
Adj. | 1. | pelecypod - bivalve |