‖n. [ L., an oyster. ] (Zool.) A genus of bivalve Mollusca which includes the true oysters. [ 1913 Webster ]
a. [ L. ostrea an oyster. See Oyster. ] (Zool.) Of or pertaining to an oyster, or to a shell; shelly. [ 1913 Webster ]
The crustaceous or ostreaceous body. Cudworth. [ 1913 Webster ]
n. The artificial cultivation of oysters. [ 1913 Webster ]