Oyster
salt-water bivalve mollusc
Oyster is the common name for a number of different families of salt-water bivalve molluscs that live in marine or brackish habitats. In some species, the valves are highly calcified, and many are somewhat irregular in shape. Many (but not all) oysters are in the superfamily Ostreoidea.
Some species of oyster are commonly consumed and are regarded as a delicacy in some localities. Some types of pearl oysters are harvested for the pearl produced within the mantle. Others, such as the translucent windowpane oysters, are harvested for their shells.
Etymology
The word oyster comes from Old French oistre, and first appeared in English during the 14th century. The French derived from the Latin ostrea, the feminine form of ostreum, which is the latinisation of the Ancient Greek ὄστρεον (ostreon) 'oyster'. Compare ὀστέον (osteon) 'bone'.
Types
True oysters
True oysters are members of the family Ostreidae.
“Oyster” enters the record as salt-water bivalve mollusc. Crown Archives preserves that source wording while asking what Oyster, salt-water and bivalve can confirm, complicate or overturn.
Why this record matters
“Oyster” is worth following because a concise public description often conceals a longer documentary argument. Here, Oyster, salt-water and bivalve provides the most credible route into that argument.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 7, 2026. The linked authority identifier is Q107411. None of the 0 selected statements returned an explicit reference.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
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- Subject orientation
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Three-step research path
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- Expand the search: follow Oyster primary sources, Oyster archive and Oyster research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “Oyster” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.