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emission meaning

[ i'miʃən ] Pronunciation:   "emission" in a sentence
  • Noun: emission  i'mishun
    1. The act of emitting; causing to flow forth
      - emanation 
    2. A substance that is emitted or released
      - discharge 
    3. The release of electrons from parent atoms 
    4. Any of several bodily processes by which substances go out of the body
      - discharge, expelling 
    5. The occurrence of a flow of water (as from a pipe)

    Derived forms: emissions

    See also: emit

    Type of: activity, bodily function, bodily process, body process, egress, egression, emergence, flow, flowing, material, release, stuff

    Encyclopedia: Emission


  • [Architecture]

    The radiation of energy (for example, electromagnetic, heat, light, or sound).


  • [Business]
    noun

    1 [C, usually pl.]

    harmful gas, etc. that is sent out into the air:

    emissions from vehicles/power stations

    They aim to reduce carbon dioxide emissions by 20% by 2010.

    2 [U]

    the production or sending out of harmful gas, etc:

    low emission cars


  • [Electronics]
    1. The ejection of particles, especially electrons, from a material.
    2. Waves radiated from any source (as from a transmitting antenna or from an amplifier stage).
    3. The emanation of radiant, electromagnetic, acoustical, electrical, or magnetic energy.

  • [Medicine]
    n
    1 : an act or instance of emitting
    2
    a : something sent forth by emitting: as (1) : electrons discharged from a surface (2) : electromagnetic waves radiated by an antenna or a celestial body (3) : substances and esp. pollutants discharged into the air (as by a smokestack or an automobile gasoline engine)
    b : a discharge of fluid from a living body; esp : EJACULATE —see NOCTURNAL EMISSION

Examples

    More:   Next
  1. an example is the emission of light from matter.
  2. there was an audible emission of breath from the duke.
  3. beta emission consists of electrons.
  4. the distinct processes are involved in x-ray emission.
  5. a lumen is a measure of the rate of emission of light energy.

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