noun Etymology: International Scientific Vocabulary Date: 1811 a science that deals with the origin, history, occurrence, structure, chemical composition, and classification of rocks, petrologic or petrological adjective petrologically adverb petrologist noun
PETROLOGY
Meaning of PETROLOGY in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012