(1):
(n.) The act of vivifying, or the state of being vivified; restoration of life; revival.
(2):
(n.) One of the changes of assimilation, in which proteid matter which has been transformed, and made a part of the tissue or tissue cells, is endowed with life, and thus enabled to manifest the phenomena of irritability, contractility, etc.
(3):
(n.) The act or process of vivificating.