珍珠贝 zhēnzhūbèi pearl oyster Origin Definitions Defs Strokes Stroke Words Sentences Sents 马氏珍珠贝 mǎshìzhēnzhūbèi Akoya pearl oyster Akoya pearl oyster (Pinctada martensii or Pinctada fucata martensii), a species of marine bivalve mollusk commonly used for pearl cultivation