D defs.my
Entry 4 senses Webster, 1913

Expiration

/ĕkˌ-spẽr-āsh'-ən/ · Ex·pi·ra·tion · IPA /ˌɛk.spəˈɹeɪ.ʃən/
01 n. The act of expiring
  1. 1.
    The act of expiring(Physiol.)
    “The true cause of cold is an expiration from the globe of the earth.” Bacon.
  2. 2.
    The last emission of breath; death.
  3. 3.
    A coming to a close; cessation; extinction; termination; end.
    “Before the expiration of thy time.” Shak.
  4. 4.
    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.