degeneration
Cross references:
1. deterioration
de.gen.er.a.tion \di-.jen-*-'ra--sh*n, .de--\ n 1: a lowering of effective
power, vitality, or essential quality to an enfe ebled and worsened kind or
state 2a: intellectual or moral decline 2b: degenerate condition 3a:
progressive deterioration of physical characters from a level represent ing
the norm of earlier generations or forms 3b: deterioration of a tissue or
an organ in which its vitality is diminish ed or its structure impaired 4:
marked decline in excellence (as of workmanship or originality)