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petrochemistry

[pe-troh-kem-uh-stree] /ˌpɛ troʊˈkɛm ə stri/
noun
1.
the branch of chemistry dealing with petroleum or its products.
2.
the chemistry of rocks.
Origin
1935-1940
1935-40; petro-2 or petro-1 + chemistry
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for petro-chemistry

petrochemistry

/ˌpɛtrəʊˈkɛmɪstrɪ/
noun
1.
the chemistry of petroleum and its derivatives
2.
the branch of chemistry concerned with the chemical composition of rocks
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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