A thing that has degenerated.
The process or state of growing worse, or the state of having become worse.
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.
Gradual deterioration, from natural causes, of any class of animals or plants or any particular organ or organs; hereditary degradation of type.
Any progression of decay, corruption, or obsolescence.
The crumbly, friable decayed portions of wooden members of buildings, especially at or below grade, usually caused by a fungal infection.
A fungal infection which affects plants, in particular potatoes.