Definition of megadeath in English:

megadeath

noun

  • A unit used in quantifying the casualties of nuclear war, equal to the deaths of one million people.

    • ‘We're talking megadeaths, if not outright extinction!’
    • ‘Dr. Caldicott retreated to the outback, but she left a legacy of tremendous mass awareness about the threat of nuke megadeath and planetcide.’

Pronunciation:

megadeath

/ˈmeɡəˌdeTH/