razor clam

noun
  1. 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

Historical Examples of 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