Main Entry: ex·pi·ra·tion

Pronunciation: \ˌek-spə-ˈrā-shən\

Function: noun

Date: 1526

1 a : the last emission of breath : death b (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)
2 : the fact of coming to an end or the point at which something ends : termination