cultured pearl
or culture pearl
- a pearl induced to form by placement of a grain of sand or another irritating object within the shell of a pearl oyster or mussel.
Origin of cultured pearl
First recorded in 1920–25
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
cultured pearl
- 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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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