Ostracean

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Ostracean \Os*tra"cean\, n. [L. ostrea an oyster. See {Oyster}.]
     (Zool.)
     Any one of a family of bivalves, of which the oyster is the
     type.
     [1913 Webster]