"Pinctada" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
A genus of pearl oysters in the family Pteriidae, class BIVALVIA. Both cultured and natural pearls are obtained from species in the genus. They are distinct from the distantly related, edible true oysters of the family OSTREIDAE.
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