Noun has 2 senses

• round clam(n = noun.food) hard-shell clam, quahaug, quahog - Atlantic coast round clams with hard shells; large clams usually used for chowders or other clam dishes;




• round clam(n = noun.animal) hard clam, hard-shell clam, mercenaria mercenaria, quahaug, quahog, venus mercenaria - an edible American clam; the heavy shells were used as money by some American Indians;