Necrobiosis
Necrobiosis , noun
[New Latin, from Greek nekro`s dead + {not transcribed} way of life, from {not transcribed} life.]
(Biology & Medicine) The death of a part of an organism by molecular disintegration and without loss of continuity, as in the processes of degeneration and atrophy; a normal dying out of cells in a tissue, in contrast to necrosis. — Virchow