Meaning of deflagration in English:


Pronunciation /dɛfləˈɡreɪʃ(ə)n/


mass noun
  • 1The action of heating a substance until it burns away rapidly.

    ‘Other times, depending on the casement, whether it is plastic or metal, especially metal, it will do low order detonation, or what we call deflagration.’
    • ‘Very few blast-resistant windows installed during the renovation of the structure that was begun in 1999 and scheduled for completion in 2010 broke during the impact and deflagration of aircraft fuel.’
    • ‘Improper dispersal of the fuel aerosol or a mis-timed firing of the initiator could produce a large fireball, but the resulting deflagration would not produce the blast shock wave of the intended explosive detonation.’
    1. 1.1 technical Combustion which propagates through a gas or across the surface of an explosive at subsonic speeds, driven by the transfer of heat.
      Compare with detonation
      • ‘Explosives experts refer to rapid explosive reactions as detonation and slower explosive reactions as deflagration.’


Early 17th century from Latin deflagratio(n-), from the verb deflagrare (see deflagrate).