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English definition of “pearl”

pearl

noun uk   /pɜːl/ us    /pɝːl/
[C or U] a small, round object, usually white, that forms around a grain of sand inside the shell of a sea creature, especially an oyster. Pearls are valuable and are used to make jewellery: a string of pearls a pearl necklaceJewelleryPrecious and semi-precious stonesTypes of rock pearls [plural] jewellery made from pearls: He gave her pearls for her birthday.Jewellery [C] an artificially made pearl: cultured pearlsJewelleryPrecious and semi-precious stonesTypes of rock [C] literary a small drop of liquid: There were pearls of dew on the grass.Spherical, circular and annular objectsGeometrical shapes [U] the white shiny colour of pearl or a pale colourBlack, white and grey [U] → mother-of-pearl: pearl buttonsJewelleryThe skin, hair and bone of non-human animals
(Definition of pearl from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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