noun.
Death of cells through injury or disease, especially in a localized area of a tissue or organ.
The Century Dictionary and Cyclopedia
noun.
A disease of the grape, attributed to Bacillus vitivorus.
noun.
In pathology, the death of a circumscribed piece of tissue.
noun.
In botany, a disease of plants, chiefly found upon the leaves and soft parenchymatous parts.
the GNU version of the Collaborative International Dictionary of English
noun.
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.
noun.
A disease of trees, in which the branches gradually dry up from the bark to the center.