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Definition of: explosion
(ik·splō′zhən) noun
1. The act of exploding; rapid combustion or other similar process, usually causing a loud report.
2. The power stroke of an internal–combustion engine.
3. Physiol. The sudden discharge of a neural cell or group of cells.
4. A sudden and violent outbreak as of physical forces or of human emotion.
5. Phonet. Plosion. [<L explosio, -onis <explodere. See EXPLODE.]
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