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petrography

American  
[pi-trog-ruh-fee] / pɪˈtrɒg rə fi /

noun

  1. the branch of petrology dealing with the description and classification of rocks, especially by microscopic examination.


petrography British  
/ ˌpɛtrəˈɡræfɪk, pɛˈtrɒɡrəfɪ /

noun

  1.  petrog.  the branch of petrology concerned with the description and classification of rocks

"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

petrography Scientific  
/ pə-trŏgrə-fē /
  1. The description and classification of rocks, especially by means of microscopic analysis.


Other Word Forms

Etymology

Origin of petrography

From the New Latin word petrographia, dating back to 1645–55. See petro- 1, -graphy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Endress, M., Spettel, B. & Bischoff, A. Chemistry, petrography and mineralogy of the Tonk CI chondrite: preliminary results.

From Nature Nov. 28, 2017

Delicate cleavage-plates of gypsum are used in microscopic petrography for the determination of certain optical constants in the rock-forming minerals.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" by Various

The City worried him a good deal, and what energy he had left over he spent partly in golf, a game he treated very seriously, and partly in the practices of microscopic petrography.

From Ann Veronica, a modern love story by Wells, H. G. (Herbert George)

The publication of this scheme may be said to mark the beginning of scientific petrography.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" by Various

A faint buzz above the ceiling witnessed that petrography, too, was active.

From Ann Veronica, a modern love story by Wells, H. G. (Herbert George)

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