eradication

/ɪˌrædɪˈkeɪʃən/
noun
  1. The act or process of completely destroying or ending something, especially a disease or problem.
    • The organization is working toward the eradication of hunger in the region.
    • Community efforts led to the eradication of the invasive species from the lake.
    • The eradication of smallpox is one of the greatest achievements in medicine.