1. 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. That which is sent out, issued, or put in circulation at one time; issue; as, the emission was mostly blood.
3. (Science: physics) emission theory, the theory of newton, regarding light as consisting of emitted particles or corpuscles. See corpuscular theory.
Origin: L. Emissio: cf. F. Emission.