DictionaryclamBurrowing shellfish
noun / verb

clam

KLAM/klæm/

A shellfish enclosed by two tightly closing shell halves.

The clam's two shells open slightly at the hinge.

A single hard clam viewed obliquely with its two rounded, ridged shell valves partly open, clearly joined at the hinge and enclosing the soft animal.
Etymology

The shellfish name apparently comes from a word for a grip or fetter, later meaning pincers or a clamp. If this connection is right, the original reference was to the shell.

In context

The Royal Institution7:09
the Natural History Museum does have a giant clam shell and I asked if I could borrow it but they said we need a forklift truck to get over here because it's huge
Under the Sea - With Helen Scales

More examples

  • We went clamming at low tide.
  • They steamed a pot of clams for dinner.
  • He clams up when anyone asks about the missing money.

Forms

clam · clams · clammed · clamming

Similar words

mussel
A different two-shelled mollusk, often attached to surfaces.
oyster
Another bivalve, usually with a rougher irregular shell.