noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A variety of orthoclase feldspar found as tabular crystals embedded in volcanic rocks. Some forms (called moonstone) exhibit adularescence. countable, uncountable

Etymology

From Ancient Greek σανίς (sanís, “board”) + -ine.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.