degeneration
1. [ noun ] the process of declining from a higher to a lower level of effective power or vitality or essential quality
Synonyms: devolution
Related terms: development process attack macular_degeneration obsolescence
2. [ noun ] the state of being degenerate in mental or moral qualities
Synonyms: decadence decadency degeneracy
Related terms: abasement deteriorate
3. [ noun ] (biology) passing from a more complex to a simpler biological form
Synonyms: retrogression
Related terms: transformation cataplasia abiotrophy
Similar spelling:   degenerative
  degenerate
  degeneracy
  Degenhardt