clam

US /klæm/

UK /klæm/

1.

a marine bivalve mollusk with a strongly ribbed shell.

:

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We dug for clams on the beach.

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She ordered a bowl of clam chowder.

:

bivalve mollusk shellfish

1.

to shut or close tightly.

:

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The oyster clams up when disturbed.

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He clams his mouth shut when he doesn't want to talk.

:

close shut seal fasten

:

razor clam clam up