petro

[pe-troh]

pet·ro

[pe-troh]
adjective
1.
of or pertaining to petroleum or the petroleum industry.
noun
2.
Canadian. the federally owned petroleum industry.

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Petro is always a great word to know.
So is interrobang. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.

Origin:
1970–75; independent use of petro-2
Dictionary.com Unabridged

petro-

1
a combining form meaning “rock,” “stone,” used in the formation of compound words: petrology.
Also, petri-; especially before a vowel, petr-.


Origin:
< Greek, combining form of pétra rock, pétros a stone

petro-

2
a combining form meaning “petroleum,” “the extraction and export of petroleum,” used in the formation of compound words: petrochemistry; petropower.

Origin:
extracted from petroleum
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source Link To petro
American Heritage
Medical Dictionary

petro- or petri- or petr-
pref.
Rock; stone; stone-like hardness: petrous.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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