- an act or instance of exploding; a violent expansion or bursting with noise, as of gunpowder or a boiler (opposed to implosion).
- the noise itself: The loud explosion woke them.
- a violent outburst, as of laughter or anger.
- a sudden, rapid, or great increase: a population explosion.
- the burning of the mixture of fuel and air in an internal-combustion engine.
- plosion.
- the act or an instance of exploding
- a violent release of energy resulting from a rapid chemical or nuclear reaction, esp one that produces a shock wave, loud noise, heat, and light
- a sudden or violent outburst of activity, noise, emotion, etc
- a rapid increase, esp in a population
- phonetics another word for plosion
