Emission

The act of sending or throwing out; the act of sending forth or putting into circulation; issue; as, the emission of light from the sun; the emission of heat from a fire; the emission of bank notes.

That which is sent out, issued, or put in circulation at one time; issue; as, the emission was mostly blood.

The process of sending out something such as light or radiation

the act of emitting; causing to flow forth

the occurrence of a flow of water (as from a pipe)