petrographyPronunciation: /pɛˈtrɒgrəfi/Definition of petrography noun [mass noun] the branch of science concerned with the composition and properties of rocks. Derivatives petrographer noun petrographicPronunciation: /-ˈgrafɪk/ adjective petrographicalPronunciation: /-ˈgrafɪk(ə)l/ adjective petrography in other Oxford dictionaries Definition of petrography in the US English dictionary
