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pyrolysis

[pahy-rol-uh-sis] /paɪˈrɒl ə sɪs/
noun, Chemistry
1.
the subjection of organic compounds to very high temperatures.
2.
the resulting decomposition.
Origin of pyrolysis
1885-1890
1885-90; pyro- + -lysis
Related forms
pyrolytic
[pahy-ruh-lit-ik] /ˌpaɪ rəˈlɪt ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for pyrolysis

pyrolysis

/paɪˈrɒlɪsɪs/
noun
1.
the application of heat to chemical compounds in order to cause decomposition
2.
chemical decomposition of compounds caused by high temperatures
Derived Forms
pyrolytic (ˌpaɪrəʊˈlɪtɪk) adjective
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 pyrolysis
n.

1879, from pyro- + -lysis. Related: Pyrolytic.

Online Etymology Dictionary, © 2010 Douglas Harper
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pyrolysis in Medicine

pyrolysis py·rol·y·sis (pī-rŏl'ĭ-sĭs)
n.
Decomposition or transformation of a chemical compound caused by heat.

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