moonstone

noun moon·stone \ -ˌstōn \
Updated on: 20 Apr 2018

Definition of moonstone

: a transparent or translucent feldspar of pearly or opaline luster used as a gem

Recent Examples of moonstone from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'moonstone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of moonstone

15th century


MOONSTONE Defined for Kids

moonstone

noun moon·stone \ ˈmün-ˌstōn \

Definition of moonstone for Students

: a partly transparent shining stone used as a gem

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