Definition: The act or state of growing worse, or the state of
having become worse; decline; degradation; debasement; degeneracy;
deterioration.
Definition: That condition of a tissue or an organ in which its
vitality has become either diminished or perverted; a substitution of a
lower for a higher form of structure; as, fatty degeneration of the
liver.
Definition: A gradual deterioration, from natural causes, of any
class of animals or plants or any particular organ or organs;
hereditary degradation of type.
Definition: The thing degenerated.
