petro chemical

petrochemical

[pe-troh-kem-i-kuhl]
noun
1.
a chemical substance obtained from petroleum or natural gas, as gasoline, kerosene, or petrolatum.
adjective
2.
of or pertaining to petrochemistry or a petrochemical.

Origin:
1910–15; petro-2 + chemical

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
petrochemical (ˌpɛtrəʊˈkɛmɪkəl)
 
n
1.  any substance, such as acetone or ethanol, obtained from petroleum or natural gas
 
adj
2.  of, concerned with, or obtained from petrochemicals or related to petrochemistry
 
petro'chemically
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

petrochemical
1913, formed in Eng. from Gk. petro-, comb. form of petra "rock" + chemical (q.v.).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
petrochemical   (pět'rō-kěm'ĭ-kəl)  Pronunciation Key 
Any of a large number of chemicals made from petroleum or natural gas. Important petrochemicals include benzene, ammonia, acetylene, and polystyrene. Petrochemicals are used to produce a wide variety of materials, such as plastics, explosives, fertilizers, and synthetic fibers.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
petrochemical [(pet-roh-kem-i-kuhl)]

Any material made from substances found in oil or natural gas. Most plastics are petrochemicals.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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