Petrology

//pəˈtɹɑl.ə.d͡ʒi// noun

Definitions

Noun
  1. 1
    The study of the origin, composition and structure of rock. uncountable, usually
  2. 2
    the branch of geology that studies rocks: their origin and formation and mineral composition and classification wordnet

Etymology

From petro- + -logy.

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