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Medical Term:


Pronunciation: ven-ti-la'shun


  1. Replacement of air or other gas in a space by fresh air or gas.
  2. Movement of gas(es) into and out of the lungs.
  3. In physiology, the tidal exchange of air between the lungs and the atmosphere that occurs in breathing.

Synonym(s): oxidative metabolism, respiration2

[see ventilate]

See Also: respiration

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