Definition of: explosive

(ik·splō′siv) adjective
1. Pertaining to explosion.
2. Liable to explode or to cause explosion.
3. Phonet. Plosive.
—noun
1. Physics Any substance or mixture of substances which, on impact or by ignition, reacts by a violent rearrangement of its molecules accompanied by the sudden expansion of gases and the liberation of relatively large amounts of thermal energy.
2. Phonet. A plosive consonant.
—ex·plo′sive·ly adverb
—ex·plo′sive·ness noun