• synonyms


verb (used with or without object), def·la·grat·ed, def·la·grat·ing.
  1. to burn, especially suddenly and violently.
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Origin of deflagrate

1720–30; < Latin dēflagrātus (past participle of dēflagrāre to burn down), equivalent to dē- de- + flagr(āre) to burn + -ātus -ate1
Related formsdef·la·gra·ble, adjectivedef·la·gra·bil·i·ty, noundef·la·gra·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for deflagration

Historical Examples

British Dictionary definitions for deflagration


  1. to burn or cause to burn with great heat and light
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Derived Formsdeflagration, noun

Word Origin

C18: from Latin dēflagrāre, from de- + flagrāre to burn
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for deflagration


c.1600, from Latin deflagrationem (nominative deflagratio) "a burning up, conflagration," noun of action from past participle stem of deflagrare, from de- (see de-) + flagrare (see flagrant).

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Online Etymology Dictionary, © 2010 Douglas Harper