Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The act of coming to a close; termination: the expiration of a contract.
  • n. The act of breathing out; exhalation.
  • n. Archaic Death.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The act of expiring
  • n. The act or process of breathing out, or forcing air from the lungs through the nose or mouth; as, respiration consists of inspiration and expiration; -- opposed to inspiration.
  • n. Emission of volatile matter; exhalation.
  • n. The last emission of breath; death.
  • n. A coming to a close; cessation; extinction; termination; end.
  • n. That which is expired; matter breathed forth; that which is produced by breathing out, as a sound.

from the GNU version of the Collaborative International Dictionary of English

  • n. The act of expiring.
  • n. The act or process of breathing out, or forcing air from the lungs through the nose or mouth; ; -- opposed to inspiration.
  • n. Emission of volatile matter; exhalation.
  • n. The last emission of breath; death.
  • n. A coming to a close; cessation; extinction; termination; end.
  • n. That which is expired; matter breathed forth; that which is produced by breathing out, as a sound.

from The Century Dictionary and Cyclopedia

  • n. The act of breathing out; expulsion of air from the lungs in the process of respiration: opposed to inspiration.
  • n. The last emission of breath; cessation; death.
  • n. Close; end; conclusion; termination: as, the expiration of a month or year; the expiration of a contract or a lease.
  • n. That which is produced by audible expiring or breathing out, as a sound.
  • n. Emission of volatile matter from any substance; evaporation; exhalation: as, the expiration of oxygen by plants.

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

  • n. the act of expelling air from the lungs
  • n. euphemistic expressions for death
  • n. a coming to an end of a contract period

Etymologies

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