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petrochemical

[pe-troh-kem-i-kuh l] /ˌpɛ troʊˈkɛm ɪ kəl/
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
1910-1915
1910-15; petro-2 + chemical
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for petro-chemical

petrochemical

/ˌpɛtrəʊˈkɛmɪkəl/
noun
1.
any substance, such as acetone or ethanol, obtained from petroleum or natural gas
adjective
2.
of, concerned with, or obtained from petrochemicals or related to petrochemistry
Derived Forms
petrochemically, 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
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Word Origin and History for petro-chemical

petrochemical

adj.

1913, from petro- (1) + chemical (adj.). As a noun from 1942.

Online Etymology Dictionary, © 2010 Douglas Harper
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petro-chemical in Science
petrochemical
  (pět'rō-kěm'ĭ-kəl)   
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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petro-chemical in Culture
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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