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a. Any of several edible bivalve mollusks of the family Ostreidae, having a rough, irregularly shaped shell attached to the substrate in shallow marine waters. Oysters are widely cultivated for food.
b. Any of various similar or related bivalve mollusks, such as the pearl oyster.
2. An edible bit of muscle found in the hollow of the pelvic bone of a fowl.
a. A special delicacy.
b. Something from which benefits may be extracted.
4. Slang A close-mouthed person.
intr.v. oys·tered, oys·ter·ing, oys·ters
To gather, dredge for, or raise oysters.

[Middle English oistre, from Old French, from Latin ostreum, ostrea, from Greek ostreon; see ost- in Indo-European roots.]


the activity of dredging for, gathering, or raising oysters
References in classic literature ?
I was watching you fellows and figuring out whether we'd go oystering or not.
History of oystering in the United States and Canada, featuring the eight greatest oyster estuaries.
Oyster closures can also be ordered based on stock assessments and environmental impacts, so before you fish with oysters or go oystering check with the FWC (myfwc.
AoWe were oystering when nobody else was,Ao Bloom said.
Most were taken to Isla Caribe, where large shell heaps, some nearly 6 in high, laid about where shuckers had left them after many years of pearl oystering.
The oystermen had worked out and refined their oystering procedures for over 100 y, from generation to generation.
4) and other local residents, observing oystering areas and equipment, and photographing related subjects on Isla del Rey, Casaya, Bolano, and Pedro Gonzalez islands in the archipelago.