from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To burn or cause to burn with great heat and intense light.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To burn with intense light and heat. Specifically, to combust subsonically through thermal conduction.
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To burn with a sudden and sparkling combustion, as niter; also, to snap and crackle with slight explosions when heated, as salt.
- transitive v. To cause to burn with sudden and sparkling combustion, as by the action of intense heat; to burn or vaporize suddenly.
from The Century Dictionary and Cyclopedia
- To set fire to; burn; consume: as, to deflagrate oil or spirit.
- To burn; burst into flame; specifically, to burn rapidly, with a sudden evolution of flame and vapor, as a mixture of charcoal and niter thrown into a red-hot crucible.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. burn with great heat and intense light
- v. cause to burn rapidly and with great intensity
Latin dēflagrāre, dēflagrāt- : dē-, intensive pref.; see de- + flagrāre, to blaze; see bhel-1 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From the participle stem of Latin deflagrare, from de + flagrare ("to burn down"). (Wiktionary)