ex·pi·ra·tion /ˌɛkspəˈreʃən/
 呼氣,斷氣;期滿,截止
 ex·pi·ra·tion /ˌɛkspəˈreʃən/ 名詞
 expiration
 過期
 Ex·pi·ra·tion n.
 1. The act of expiring; as: (a)Physiol. 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. (b) Emission of volatile matter; exhalation.
    The true cause of cold is an expiration from the globe of the earth.   --Bacon.
 (c) The last emission of breath; death. “The groan of expiration.”
 (d) A coming to a close; cessation; extinction; termination; end.
    Before the expiration of thy time.   --Shak.
 2. That which is expired; matter breathed forth; that which is produced by breathing out, as a sound.
    The aspirate =\“he,” which is . . . a gentle expiration.\=   --G. Sharp.
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 expiration
      n 1: a coming to an end of a contract period; "the expiry of his
           driver's license" [syn: termination, expiry]
      2: euphemistic expressions for death; "thousands mourned his
         passing" [syn: passing, loss, departure, exit, going,
          release]
      3: the act of expelling air from the lungs [syn: exhalation,
         breathing out]