pyrolysis

noun
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

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Other Words from pyrolysis

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

Examples of pyrolysis in a Sentence

Recent Examples on the Web Low-temperature pyrolysis can turn a variety of waste plastics into liquid biofuel. Caroline Delbert, Popular Mechanics, "Your Face Mask in the Garbage Could Make a Great Biofuel," 5 Aug. 2020 In one of his more demanding experiments, Stern combined forces with Johannes Lehmann, a biogeochemist at Cornell and an expert in pyrolysis—a thermochemical process in which materials are treated with high heat in the absence of oxygen. Arielle Pardes, Wired, "Nature Will Triumph—and Reclaim All Our Gadgets," 17 Jan. 2020 The company making the request is a startup with a system that uses pyrolysis, or combustion at extremely high-temperatures, to convert municipal waste and waste tires into synthetic gas, oil, carbon black, steel residue and char, a soil enhancer. Aldo Svaldi, The Denver Post, "From high tech to trashed tires, Colorado approves $17.8 million in economic development incentives," 19 Dec. 2019 To this end, pyrolysis is performed in the presence catalysts. Chris Lee, Ars Technica, "Lumber’s lure: Thanks to physics, viable biofuel may grow in the woods," 5 Apr. 2018 The question is: can the pyrolysis process be controlled well enough to generate all of these products? Chris Lee, Ars Technica, "Lumber’s lure: Thanks to physics, viable biofuel may grow in the woods," 5 Apr. 2018 To this end, pyrolysis is performed in the presence catalysts. Chris Lee, Ars Technica, "Lumber’s lure: Thanks to physics, viable biofuel may grow in the woods," 5 Apr. 2018 Pyrolysis is the chemical decomposition of organic materials through the application of heat. Martin Sturzenegger, USA TODAY, "Swiss startup crafts green toilets to turn human waste into fertilizer," 24 June 2017

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

Time Traveler

The first known use of pyrolysis was circa 1890

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Statistics for pyrolysis

Cite this Entry

“Pyrolysis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pyrolysis. Accessed 30 Oct. 2020.

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More Definitions for pyrolysis

pyrolysis

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

More from Merriam-Webster on pyrolysis

Britannica.com: Encyclopedia article about pyrolysis

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