pismo clam

(piz)

a heavy-shelled, edible clam (Tivela stultorum) found on sandy beaches along the coast of California and Mexico

Origin: after Pismo Beach, Calif.

See pismo clam in American Heritage Dictionary 4

noun
A large, thick-shelled, edible marine clam (Tivela stultorum) of the southern Pacific coast of North America.

Origin:

Origin: After Pismo Beach, a city of southwest California

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