Definition of 'emission'

Noun

1. the act of emitting; causing to flow forth
      Synonyms: emanation
2. a substance that is emitted or released
      Synonyms: 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"
      Synonyms: discharge expelling
5. the occurrence of a flow of water (as from a pipe)

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