Deflagrate 1
Deflagrate 1 : In relation to a substance that is initiated or ignited, means the production in that substance of a chemical reaction that proceeds through, or along the surface of, the substance at subsonic velocity, where that chemical reaction: (a) results in the steady production of hot gases at high pressures; and (b) if the substance is sufficiently confined, results in an increase in pressure, rate of reaction, and temperature that may produce a detonation of the substance