petrology

== English == === Etymology === From petro- + -logy. === Pronunciation === (UK) IPA(key): /pɪˈtɹɒl.ə.d͡ʒi/ (US) IPA(key): /pəˈtɹɑl.ə.d͡ʒi/ === Noun === petrology (usually uncountable, plural petrologies) (geology) The study of the origin, composition and structure of rock. ==== Meronyms ==== mineralogy ==== Derived terms ==== ==== Related terms ==== petrography petrologist ==== Translations ==== === Anagrams === pterology, reptology