DictionarycockleEdible shellfish
noun

cockle

KAH-kul/ˈkɑːkl/

A small edible sea animal with a ridged, two-part shell.

The cockle rests on wet sand with its ridged shell slightly open.

Close view of a small cockle on wet sand, rounded bivalve shell with strong radiating ridges, slightly open paired valves.
Etymology

Greek konkhylion meant “little shellfish,” a diminutive of a word for a mussel or conch. English preserves that shellfish connection in the name of this particular edible mollusk.

In context

British Pathé1:43
for every cockle you get you've got to carry shells weighing well over 10 times the weight of the edible fish inside
Cockle Fishing Beware - Other Colour Pics Share This Title (1965)

More examples

  • We gather cockles from the wet sand at low tide.
  • Each cockle has a shell made of two hinged halves.
  • She serves the cockles with garlic butter and bread.

Forms

cockle · cockles

cockleshell noun — The rounded, ridged shell of a cockle.

Similar words

clam
A broader term for similar shellfish with two-part shells.
mussel
Usually has a longer, smoother shell than a cockle.