E*mis"sion (?), n. [L. emissio: cf. F. émission. See Emit.]
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.
Emission theory
(Physics), the theory of Newton, regarding light as consisting of emitted
particles or corpuscles. See Corpuscular theory,
under Corpuscular.