cherrystone clam cher·rys·to·neclam uncommon noun 1. small quahog larger than a littleneck; eaten raw or cooked as in e.g. clams casino Synonymscherrystonecherrystone clam 2. a half-grown quahog Synonymscherrystonecherrystone clam Related words Broader terms quahogquahaug WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.