Definition of deflagrate in English:

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Pronunciation: /ˈdefləˌɡrāt/


Chemistry , dated
Burn away or cause (a substance) to burn away with a sudden flame and rapid, sharp combustion: [with object]: the current will deflagrate some of the particles
More example sentences
  • If the fuel deflagrates but does not detonate, victims will be severely burned and will probably also inhale the burning fuel.
  • The exercise was designed around techniques for dealing with low-order explosives by gaining entrance to the munition case and then deflagrating the contents.



Pronunciation: /ˈdefləˌɡrādər/
Example sentences
  • Robert Hare invented the deflagrator for the production of high levels of electric current.
  • Among his inventions were the oxyhydrogen blowpipe, an electric furnace, and a deflagrator, and his research included work on salts.
  • The fulgurator was a sort of auto-propulsive engine, of peculiar construction, charged with an explosive composed of new substances and which only produced its effect under the action of a deflagrator that was also new.


Early 18th century: from Latin deflagrat- 'burned up', from the verb deflagrare, from de- 'away, thoroughly' + flagrare 'to burn'.

For editors and proofreaders

Syllabification: def·la·grate

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