petrography

 : 
Noun
 : 
pe=trog=ra=phy

CIDE DICTIONARY

petrographyn. [Petro + -graphy.].
  •  The art of writing on stone.  [1913 Webster]
  •  The scientific description of rocks; that department of science which investigates the constitution of rocks; petrology.  [1913 Webster]

OXFORD DICTIONARY

petrography, n. the scientific description of the composition and formation of rocks.

Derivative
petrographer n. petrographic adj. petrographical adj.

For further exploring for "petrography" in Webster Dictionary Online


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