'Necrosis' definitions:

Definition of 'necrosis'

From: WordNet
noun
The localized death of living cells (as from infection or the interruption of blood supply) [syn: necrosis, mortification, gangrene, sphacelus]

Definition of 'Necrosis'

From: GCIDE
  • Necrosis \Ne*cro"sis\ (n[-e]*kr[=o]"s[i^]s), n. [NL., fr. Gr. ne`krwsis, fr. nekruy^n to make dead, to mortify, nekro`s a dead body.]
  • 1. (Med.) The pathologic death of part of a tissue due to irreversible damage. Contrast to necrobiosis, which is a normal death of cells in a tissue. Formerly, applied primarily to death of bone tissue. [1913 Webster +PJC]
  • 2. (Bot.) A disease of trees, in which the branches gradually dry up from the bark to the center. [1913 Webster]