Emission

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Dictionary Meaning and Definition on 'Emission'

Emission Meaning and Definition from WordNet (r) 2.0
    emission n
  1. the act of emitting; causing to flow forth [syn: emanation]
  2. a substance that is emitted or released [syn: discharge]
  3. the release of electrons from parent atoms
  4. any of several bodily processes by which substances go out of the body; "the discharge of pus" [syn: discharge, expelling]
  5. the occurrence of a flow of water (as from a pipe)
Emission Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)
    Emission \E*mis"sion\, n. [L. emissio: cf. F. ['e]mission. 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.
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Wikipedia Meaning and Definition on 'Emission'


  • Emission: Emission may refer to: Flue gas , also: Exhaust gas , flue gas occurring as a result of the combustion of a fuel. Emission of air pollutant s ...
  • Emission spectrum: The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted by ...
  • Emission standard: Emission standards are requirements that set specific limits to the amount of pollutants that can be released into the environment. ...
  • Vehicle emissions control: Vehicle emissions control is the study and practice of reducing the motor vehicle emissions - emissions produced by motor vehicle s, ...
  • Thermionic emission: Thermionic emission is the heat-induced flow of charge carriers from a surface or over a potential-energy barrier. This occurs because ...
  • Emission nebula: An emission nebula is a cloud of ionized gas emitting light of various colors. The most common source of ionization is high-energy ...
  • Stimulated emission: In optics , stimulated emission is the process by which an atomic electron (or an excited molecular state) interacting with an ...

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