The act or process of burning.
A process wherein a fuel is combined with oxygen, usually at high temperature, releasing heat.
A process whereby two chemicals are combined to produce heat.
Violent agitation, tumult.
A flash of light; a spark.
The twinkling of a star or other celestial body caused by turbulence in the Earth's atmosphere.
The flash of light produced by something (especially a phosphor) when it absorbs ionizing radiation.