Ijolite

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A rare igneous rock consisting essentially of nepheline and augite. countable, uncountable

Etymology

Derived from the first syllable of the Finnish words Ii-vaara, Iijoki, etc., common as geographical names in Finland (ultimately reflecting Proto-Samic *ijë (“night”)), and Ancient Greek λίθος (líthos, “a stone”).

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