Emission (noun)

1. The action of producing or emitting something, especially a substance, sound or light.
2. A substance or particle that is emitted, especially as a result of a chemical or industrial process.
3. A broadcast of a television or radio program.

Origin:

From latin emissio, from emitere, meaning 'to send out, throw out'.

Examples:

1. Car emissions are a major contributor to air pollution.
2. The emission of greenhouse gases from burning fossil fuels is causing global warming.
3. This radio station broadcasts a live emission of classical music every Sunday morning.
4. The factory was fined for illegally emitting toxic chemicals into the air.
5. The emission of light from stars provides a way for astronomers to study them.