The act of mortifying, or the condition of being mortified; especially:
(a)
(Med.) The death of one part of an animal body, while the rest continues to live; loss of vitality in some part of a living animal; gangrene.
(b)
(Alchem. & Old Chem.) Destruction of active qualities; neutralization. (Obs.)
(c)
Subjection of the passions and appetites, by penance, abstinence, or painful severities inflicted on the body. "The mortification of our lusts has something in it that is troublesome, yet nothing that is unreasonable."