The Open Dictionary

degeneration

noun

UK/dɪˌdʒen.əˈreɪ.ʃᵊn/
US/dɪˌdʒen.əˈreɪ.ʃᵊn/

Definitions of degeneration noun

  1. UncountableSingular

    The process by which something declines to a lower or worse state.

    • Over time, the city's infrastructure experienced significant degeneration.

    • His muscles began to show signs of degeneration due to lack of exercise.

    • The disease can cause gradual degeneration of vision.