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Definition of moonstone

moonstone

/ˈmuːnˌstoʊn/
moon · stone
Plural:moonstones
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moonstone Lexical Profile

moonstone Game Scores & Validity

• noun

1

A translucent or transparent variety of feldspar (typically orthoclase or albite) that exhibits a pearly, opalescent schiller and is widely used as a semiprecious gemstone.

Example

"The jeweler set a cabochon of polished moonstone into the center of the silver pendant."

Synonyms
View all synonyms for moonstone

• Rhymes for moonstone

• Nearby Words

moonshining
moonship
moonshot
moonstone
moonstruck
moonwalk
moonwalker

Word Origin & Etymology

Formed in Middle English as a compound of 'moon' and 'stone', modeled after the Medieval Latin selenites, in reference to its pearly, moon-like luster and the ancient belief that its appearance waxed and waned with the phases of the moon.

Cite this Entry

Wordmom. (2026). Definition of Moonstone. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/moonstone
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