petrographical

pe·trog·ra·phy

[pi-trog-ruh-fee]
noun
the branch of petrology dealing with the description and classification of rocks, especially by microscopic examination.

Origin:
1645–55; < Neo-Latin petrographia. See petro-1, -graphy

pe·trog·ra·pher, noun
pet·ro·graph·ic [pe-truh-graf-ik] , pet·ro·graph·i·cal, adjective
pet·ro·graph·i·cal·ly, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
petrography (pɛˈtrɒɡrəfɪ) [Click for IPA pronunciation guide]
 
n
petrog the branch of petrology concerned with the description and classification of rocks
 
pe'trographer
 
n
 
petrographic
 
adj
 
petro'graphical
 
adj
 
petro'graphically
 
adv

00:10
Petrographical is always a great word to know.
So is ort. Does it mean:
a scrap or morsel of food left at a meal.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
petrography (pɛˈtrɒɡrəfɪ) [Click for IPA pronunciation guide]
 
n
petrog the branch of petrology concerned with the description and classification of rocks
 
pe'trographer
 
n
 
petrographic
 
adj
 
petro'graphical
 
adj
 
petro'graphically
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
petrography   (pə-trŏg'rə-fē)  Pronunciation Key 
The description and classification of rocks, especially by means of microscopic analysis.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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