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Medical Dictionary

expire

verb ex·pire \ik-ˈspī(ə)r, usually for intransitive verb 2 and transitive verb ek-\

Medical Definition of expire

expired; expiring

  1. 1

  2. intransitive verb

  3. :  to breathe one's last breath :  die

  4. 2:  to emit the breath

  5. transitive verb

  6. :  to breathe out from or as if from the lungs <the basal metabolism test…measures the amount of carbon dioxide expired by the lungs—J. D. Ratcliff>





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