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Definition of Petrography
1. n. The art of writing on stone.
Definition of Petrography
1. [n -PHIES]
Medical Definition of Petrography
1. 1. The art of writing on stone. 2. The scientific description of rocks; that department of science which investigates the constitution of rocks; petrology. Origin: Petro. Source: Websters Dictionary (01 Mar 1998)