资料来源 : Webster's Revised Unabridged Dictionary (1913)

Ostrea \Os"tre*a\, n. [L., an oyster.] (Zo["o]l.)
   A genus of bivalve Mollusca which includes the true oysters.

资料来源 : WordNet®

Ostrea
     n : type genus of the family Ostreidae [syn: {genus Ostrea}]