- The act of expiring - 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. - Emission of volatile matter; exhalation. - The last emission of breath; death. - A coming to a close; cessation; extinction;
termination; end. - That which is expired; matter breathed forth; that
which is produced by breathing out, as a sound.