- degeneration, devolution - the process of declining from a higher to a lower level of effective power or vitality or essential quality
--1 is a kind of process
--1 has particulars: attack; macular degeneration; obsolescenceDerived form: verb degenerate1 - degeneracy, degeneration, decadence, decadency - the state of being degenerate in mental or moral qualities
--2 is a kind of abasement, degradation, abjection
Derived form: verb degenerate1 - degeneration, retrogression - passing from a more complex to a simpler biological form
--3 is a kind of transformation, transmutation, shift
--3 has particulars: abiotrophy; cataplasia