pearl oyster

Noun
  1. Tropical marine bivalve found chiefly off eastern Asia and Pacific coast of North America and Central America;
    A major source of pearls (synset 101964626)
    is a type of: oyster - marine mollusks having a rough irregular shell; found on the sea bed mostly in coastal waters
    belongs to: genus pinctada, pinctada - pearl oysters
    same as: pinctada margaritifera

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