An explosion or sudden report made by the near-instantaneous decomposition or combustion of unstable substances. Specifically, combustion that spreads supersonically via shock compression.
Engine knocking, a type of improper combustion in gasoline piston engines.
Any sudden explosion made by an exothermic process (whether chemical or not) that produces a supersonic shock wave.
The sound of an explosion.
A sudden outburst.
A sudden uncontrolled increase.
A violent release of energy (sometimes mechanical, nuclear, or chemical.)
A bursting due to pressure.