1. (n.) 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.

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

blowout discharge disgorgement effusion egestion ejaculation ejection elimination emanation emergence emersion eructation eruption excretion expulsion extravasation extrusion exudation flow flux issuance issue jet outburst outpour secretion spout spurt squirt surfacing transudation vent