Dictionary

petrology

noun pe·trol·o·gy \pə-ˈträ-lə-jē, pe-\

Definition of PETROLOGY

:  a science that deals with the origin, history, occurrence, structure, chemical composition, and classification of rocks
pet·ro·log·ic \ˌpe-trə-ˈlä-jik\ or pet·ro·log·i·cal \-ji-kəl\ adjective
pet·ro·log·i·cal·ly \-ji-k(ə-)lē\ adverb
pe·trol·o·gist \pə-ˈträ-lə-jist, pe-\ noun

Origin of PETROLOGY

International Scientific Vocabulary
First Known Use: 1811

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