pearl oyster

noun

Definition of pearl oyster

: any of several large marine bivalve mollusks of the genera Avicula and Pinctada (especially P. margaritifera) that often produce pearls, differ from the ordinary oyster in having a byssus, and are found chiefly in the East Indies (as at Sri Lanka), in the Persian Gulf, on the northern coasts of Australia, and on the Pacific coast of America

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Learn More About pearl oyster

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Cite this Entry

“Pearl oyster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pearl%20oyster. Accessed 26 Jan. 2022.

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