py·​rol·​y·​sis | \ pī-ˈrä-lə-səs How to pronounce pyrolysis (audio) \

Definition of pyrolysis

: chemical change brought about by the action of heat

Other Words from pyrolysis

pyrolytic \ ˌpī-​rə-​ˈli-​tik How to pronounce pyrolysis (audio) \ adjective
pyrolytically \ ˌpī-​rə-​ˈli-​ti-​k(ə-​)lē How to pronounce pyrolysis (audio) \ adverb

Examples of pyrolysis in a Sentence

Recent Examples on the Web Recent patent applications and announcements reveal that ExxonMobil is developing their own proprietary process for waste plastic pyrolysis. Brentan Alexander, Forbes, 30 Sep. 2021 The management of solid carbon from pyrolysis is largely contingent on its regulatory classification. Baker Institute, Forbes, 22 Sep. 2021 Classification is complicated by the fact that not all methane pyrolysis processes yield an identical carbon output. Baker Institute, Forbes, 22 Sep. 2021 And the largest waste plastic pyrolysis plant in the world from Brightmark is nearing completion in Ashley, Indiana, with more larger plants on the way. Brentan Alexander, Forbes, 30 Sep. 2021 The company planned to use a process known as pyrolysis to break down used gloves, tubing and syringes to generate power. From Usa Today Network And Wire Reports, USA TODAY, 15 July 2021 Using heat to break down plastics is called pyrolysis, and Vlachos tells Gizmodo that most prior research focuses on processes that require temperatures ranging from 752 to 1,472 degrees Fahrenheit to work. Alex Fox, Smithsonian Magazine, 26 Apr. 2021 And replace as much natural gas as possible with low-carbon alternatives such as biogas, hydrogen and synthesized methane or use a process called pyrolysis at the end of the natural gas pipes to get the carbon out. Michael E. Webber, Scientific American, 15 Mar. 2021 Low-temperature pyrolysis can turn a variety of waste plastics into liquid biofuel. Caroline Delbert, Popular Mechanics, 5 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pyrolysis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pyrolysis

circa 1890, in the meaning defined above

History and Etymology for pyrolysis

New Latin

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Time Traveler for pyrolysis

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The first known use of pyrolysis was circa 1890

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Last Updated

4 Dec 2021

Cite this Entry

“Pyrolysis.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2021.

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More Definitions for pyrolysis


py·​rol·​y·​sis | \ pī-ˈräl-ə-səs How to pronounce pyrolysis (audio) \
plural pyrolyses\ -​ˌsēz How to pronounce pyrolysis (audio) \

Medical Definition of pyrolysis

: chemical change brought about by the action of heat

Other Words from pyrolysis

pyrolytic \ ˌpī-​rə-​ˈlit-​ik How to pronounce pyrolysis (audio) \ adjective

More from Merriam-Webster on pyrolysis Encyclopedia article about pyrolysis


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