petrography

noun
pe·​trog·​ra·​phy | \ pə-ˈträ-grə-fē How to pronounce petrography (audio) , pe- \

Definition of petrography

: the description and systematic classification of rocks

Other Words from petrography

petrographer \ pə-​ˈträ-​grə-​fər How to pronounce petrographer (audio) , pe-​ \ noun
petrographic \ ˌpe-​trə-​ˈgra-​fik How to pronounce petrographic (audio) \ or petrographical \ ˌpe-​trə-​ˈgra-​fi-​kəl How to pronounce petrographical (audio) \ adjective
petrographically \ ˌpe-​trə-​ˈgra-​fi-​k(ə-​)lē How to pronounce petrographically (audio) \ adverb

First Known Use of petrography

1651, in the meaning defined above

History and Etymology for petrography

petro- + -graphy

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Time Traveler for petrography

Time Traveler

The first known use of petrography was in 1651

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Cite this Entry

“Petrography.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/petrography. Accessed 26 January 2020.

More from Merriam-Webster on petrography

Britannica.com: Encyclopedia article about petrography

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