- any bivalve mollusk of the family Solenidae, especially of the genus Ensis, having a long, rectangular, slightly curved shell.
Origin of razor clam
An Americanism dating back to 1880–85
Also called jackknife clam.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for jackknife clam
Ive got a lot of starfish and a horse-shoe crab and some razor-clam shells and two shark eggs.The Lucky Seventh
Ralph Henry Barbour