Definition: A family of marine mollusks in the class BIVALVIA, commonly known as oysters. They have a rough irregular shell closed by a single adductor muscle.
as animal & food; general or unspecified; prefer specifics; as food, coordinate IM with SHELLFISH (IM); note entry term OYSTERS: oysters unspecified go here; OYSTERS, TRUE is also available
ExamplesCrassostrea; Ostrea
