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单词 cultured pearl
释义

WordReference Random House Unabridged Dictionary of American English © 2024
cultured pearl, 
  1. Invertebratesa pearl induced to form by placement of a grain of sand or another irritating object within the shell of a pearl oyster or mussel.
Also, culture pearl′. 
  • 1920–25

Collins Concise English Dictionary © HarperCollins Publishers::
cultured pearl n
  1. a pearl induced to grow in the shell of an oyster or clam, by the insertion of a small object around which layers of nacre are deposited
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