Any of certain marine bivalve mollusks, especially those of the family Ostreidae (the true oysters), usually found adhering to rocks or other fixed objects in shallow water along the seacoasts, or in brackish water in the mouth of rivers.

Of a pale beige colour tinted with grey or pink, like that of an oyster.

(intransitive) To fish for oysters.

plural of oyster

simple past tense and past participle of oyster

present participle of oyster

plural of oysterer

One who finds and sells oysters.

plural of Oyster

A surname.