hard-shell clam

noun

quahog.

Origin of hard-shell clam

An Americanism dating back to 1810–20

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for hardshell clam

hard-shell clam

noun

another name for the quahog

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012