See Also: petrography(medicine)
petrography(dictionary)

petrography (iou)



petrography noun. M17.
[from PETRO-1 + -GRAPHY.]
The branch of science that deals with the description, composition, and classification of rocks.
petrographer noun L19.
petro'graphic adjective (petrographic province: see PROVINCE 6b) M19.
petro'graphical adjective M17.
petro'graphically adverb as regards petrography M19.