euthanasia

/ˌjuːθəˈneɪʒə/
noun
  1. The practice of ending a person's life painlessly to relieve suffering from an incurable disease or condition.
    • Her family supported her wish for euthanasia after years of unbearable pain.
    • Some countries have legalized euthanasia under strict medical supervision.
    • The debate over euthanasia often involves questions of ethics and personal choice.