Ijolite
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 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”).
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.