Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of petrography is as below...

Petrographical :: Petrographical (a.) Pertaining to petrography.

Petrography :: Petrography (n.) The scientific description of rocks; that department of science which investigates the constitution of rocks; petrology.

Petrography :: Petrography (n.) The art of writing on stone.

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