petrography noun.
[pɛ'trɒgrǝfi] 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. [TahlilGaran] English Dictionary ▲