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Definition of Freshwater clam
1. Noun. Bivalve mollusk abundant in rivers of central United States.
Exact synonyms: Freshwater Mussel
Generic synonyms: Mussel
Specialized synonyms: Pearly-shelled Mussel, Thin-shelled Mussel, Dreissena Polymorpha, Zebra Mussel
Generic synonyms: Mussel
Specialized synonyms: Pearly-shelled Mussel, Thin-shelled Mussel, Dreissena Polymorpha, Zebra Mussel