Definition of pyrolyse in English:

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pyrolyse

Pronunciation: /ˈpʌɪrəlʌɪz/
(US pyrolyze)

verb

Chemistry
Make or become decomposed through heating to a high temperature: one solution is to pyrolyse the waste [no object]: the surface layer of resin begins to pyrolyse
More example sentences
  • It was found that the resorcinol-formaldehyde gels could be pyrolyzed to give aerogels of pure carbon.
  • Both oil yield and styrene production decreased when pyrolyzed WEPS was repyrolyzed.
  • Hydrocarbons within the formation may be pyrolyzed.

Origin

1920s: from pyrolysis, on the pattern of analyse.

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