Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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No pronunciation record was provided for this word.
noun
the alteration of rocks and minerals by gases or magmatic fluid within volcanos etc
Definition source: English Wiktionary via Wiktextract
Topics: geography, geology, natural-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
From Ancient Greek πνεῦμα (pneûma, “vapor”) + λύειν (lúein, “to set free”). By surface analysis, pneumato- + -lysis.
