Medical Dictionary
expiration
noun ex·pi·ra·tion \ˌek-spə-ˈrā-shən\
Medical Definition of EXPIRATION
1
a (1) : the act or process of releasing air from the lungs through the nose or mouth : exhalation (2) : the escape of carbon dioxide from the body protoplasm (as through the blood and lungs or by diffusion) b archaic : the last emission of breath : death
2
: something produced by breathing out
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