Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A device that circulates fresh air and expels stale or foul air.
  • noun Medicine A machine that supplies oxygen or a mixture of oxygen and air, used in artificial respiration to control or assist breathing.

from The Century Dictionary.

  • noun One who or that which ventilates
  • noun One who or that which brings some matter to public notice, as a speaker or a newspaper.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A contrivance for effecting ventilation; especially, a contrivance or machine for drawing off or expelling foul or stagnant air from any place or apartment, or for introducing that which is fresh and pure.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A device that circulates fresh air and expels stale or noxious air
  • noun medicine A respirator

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a device that facilitates breathing in cases of respiratory failure
  • noun a device (such as a fan) that introduces fresh air or expels foul air

Etymologies

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Examples

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