pneumatolysisPronunciation: /ˌnjuːməˈtɒlɪsɪs/Definition of pneumatolysis noun [mass noun] Geology the chemical alteration of rocks and the formation of minerals by the action of hot magmatic gases and vapours. Derivatives pneumatolyticPronunciation: /-təˈlɪtɪk/ adjective pneumatolysis in other Oxford dictionaries Definition of pneumatolysis in the US English dictionary
