Deflagrate
Deflagrate , intransitive verb
[Latin deflagratus, past participle of deflagrare to burn up; de- + flagrare to flame, burn.]
(Chemistry) To burn with a sudden and sparkling combustion, as niter; also, to snap and crackle with slight explosions when heated, as salt.
Deflagrate , transitive verb
(Chemistry) To cause to burn with sudden and sparkling combustion, as by the action of intense heat; to burn or vaporize suddenly; as, to deflagrate refractory metals in the oxyhydrogen flame.