petrog.

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abbreviation

petrography.

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Words nearby petrog.

petrochemical, petrochemistry, petrodiesel, petrodollar, petrodollars, petrog., petrogenesis, petroglyph, Petrograd, petrogram, petrograph

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How to use petrog. in a sentence

Petrog′eny, the science of the origin of rocks; Pet′roglyph, a rock-carving.
Chambers's Twentieth Century Dictionary (part 3 of 4: N-R)|Various
Petrog′lyphy, the art of writing on rocks or stones; Petrog′rapher, a student of petrography.
Chambers's Twentieth Century Dictionary (part 3 of 4: N-R)|Various

British Dictionary definitions for petrog.

petrog.

abbreviation for

petrography

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012