11 letters · 19 points in Scrabble
noun small quahog larger than a littleneck; eaten raw or cooked as in e.g. clams casino
noun a half-grown quahog
originFrom cherry + stone. The name of the clam came from a fancied resemblance to a cherry's stone. The fancied resemblance is in shape, color, and sheen, not in size; the clams are several inches across.
Etymology from Wiktionary, CC BY-SA 3.0