petrography

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

noun

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

Origin of petrography

From the New Latin word petrographia, dating back to 1645–55. See petro-1, -graphy
Related formspe·trog·ra·pher, nounpet·ro·graph·ic [pe-truh-graf-ik] /ˌpɛ trəˈgræf ɪk/, pet·ro·graph·i·cal, adjectivepet·ro·graph·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for petrography

British Dictionary definitions for petrography

petrography

/ (pɛˈtrɒɡrəfɪ) /

noun

the branch of petrology concerned with the description and classification of rocksAbbreviation: petrog

Derived Formspetrographer, nounpetrographic (ˌpɛtrəˈɡræfɪk) or petrographical, adjectivepetrographically, adverb
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

Science definitions for petrography

petrography

[ pə-trŏgrə-fē ]

The description and classification of rocks, especially by means of microscopic analysis.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.