emission Meaning, Definition & Usage

  1. noun the act of emitting; causing to flow forth
    emanation.
  2. noun a substance that is emitted or released
    discharge.
  3. noun the release of electrons from parent atoms
  4. noun any of several bodily processes by which substances go out of the body
    discharge; expelling.
    • the discharge of pus
  5. noun the occurrence of a flow of water (as from a pipe)

WordNet

E*mis"sion noun
Etymology
L. emissio: cf. F. émission. See Emit.
Definitions
  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. now, we issue bank notes.
  2. That which is sent out, issued, or put in circulation at one time; issue; as, the emission was mostly blood.

Webster 1913