petro-
Also found in: Medical, Wikipedia.
petro-
(word root) stoneExamples of words with the root petro-: petroglyph
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree
petro-
or petri- or petr-pref.
1. Rock; stone: petroglyph.
2. Petroleum: petrochemistry.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
petro-
or before a vowelpetr-
combining form
1. (Geological Science) indicating stone or rock: petrology.
2. (Geological Science) indicating petroleum, its products, etc: petrochemical.
3. of or relating to a petroleum-producing country: petrostate.
[from Greek petra rock or petros stone]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
petro-1
, a combining form meaning “rock,” “stone”: petrology.
[< Greek, comb. form of pétra rock, pétros a stone]
petro-2
, a combining form meaning “petroleum,” “the extraction and export of petroleum”: petrochemistry; petropower.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Translations
petro-
(petrəu) of or related to petrol as in petrochemicalKernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.