petrography


pe·trog·ra·phy

noun \pə-ˈträ-grə-fē, pe-\

Definition of PETROGRAPHY

:  the description and systematic classification of rocks
pe·trog·ra·pher \-fər\ noun
pet·ro·graph·ic \ˌpe-trə-ˈgra-fik\ or pet·ro·graph·i·cal \-fi-kəl\ adjective
pet·ro·graph·i·cal·ly \-fi-k(ə-)lē\ adverb

Origin of PETROGRAPHY

New Latin petrographia, from petr- + Latin -graphia -graphy
First Known Use: 1651

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