D defs.my
Entry 2 senses Webster, 1913

Necrosis

/(nē̇*krō"sĭs)/ · Ne·cro·sis · IPA /nəkrˈoʊsəs/
01 n. The pathologic death of part of a tissue due to irreversible damage. Contrast to necrobiosis, which is a normal death of cells in a tiss…
  1. 1.
    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.(Med.)
  2. 2.
    A disease of trees, in which the branches gradually dry up from the bark to the center.(Bot.)