Definition of "clam"
clam1
/klæm/
noun
plural clams
A bivalve mollusk of many kinds, especially those that are edible; for example soft-shell clams (Mya arenaria), hard clams (Mercenaria mercenaria), sea clams or hen clam (Spisula solidissima), and other species. The name is said to have been given originally to the Tridacna gigas, a huge East Indian bivalve.
(slang, derogatory) A Scientologist.
clam2
/klæm/
clam3
/klæm/
adjective
comparative clammer, superlative clammest
(obsolete) clammy.
noun
clam4
/klæm/
noun
plural clams
(rowing) Alternative form of CLAM