quahogEnglishOxford Dictionary of Englishquahog /ˈkwɔːhɒɡ , ˈkwɑːhɒɡ / (quahaug /ˈkwɔːhɔːɡ, ˈkwɑːhɔːɡ/) ▸ noun North American English a large, rounded edible clam of the Atlantic coast of North America. Also called hard clam,, hardshell clam Venus mercenaria, family Veneridae. – ORIGIN late 18th century: from Narragansett poquaûhock.