AUTOPHAGY
Etymology
Noun
autophagy (uncountable)
(biology) The process of self-digestion by a cell through the action of enzymes originating within the same cell. Often a defensive and/or self-preservation measure.
(biology) A type of programmed cell death accomplished through self-digestion.
(rare) Self-consumption; the act of eating oneself.
Synonyms
• (self-consumption): autocannibalism
Coordinate terms
• (programmed cell death): apoptosis
Source: Wiktionary
Au*toph"a*gy, n. [Gr. self + to eat.] (Med.)
Definition: The feeding of the body upon itself, as in fasting; nutrition
by consumption of one's own tissues.
Source: Webster’s Unabridged Dictionary 1913 Edition