petrography

[ pi-trog-ruh-fee ]

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

Origin of petrography

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

Other words from petrography

  • pe·trog·ra·pher, noun
  • pet·ro·graph·ic [pe-truh-graf-ik], /ˌpɛ trəˈgræf ɪk/, pet·ro·graph·i·cal, adjective
  • pet·ro·graph·i·cal·ly, adverb

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How to use petrography in a sentence

  • In petrographic character the lavas range from hypersthene-andesite to basalt.

    Mount Rainier | Various

British Dictionary definitions for petrography

petrography

/ (pɛˈtrɒɡrəfɪ) /


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

Derived forms of petrography

  • petrographer, noun
  • petrographic (ˌpɛtrəˈɡræfɪk) or petrographical, adjective
  • petrographically, 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

Scientific definitions for petrography

petrography

[ pə-trŏgrə-fē ]


  1. 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.