Moonstone
noun ·Rare ·Advanced level
Definitions
- 1 A translucent gemstone, an orthoclase feldspar, that has a pearly lustre. countable, uncountable
"To give light to the presence chamber were seven escarbuncles, great as pumpkins, hung in order down the length of it, and nine fair moonstones standing in order on silver pedestals between the pillars on the dais."
- 2 a transparent or translucent gemstone with a pearly luster; some specimens are orthoclase feldspar and others are plagioclase feldspar wordnet
Example
More examples"Do they sell moonstone at their crystal shop?"
Etymology
From moon + stone.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.