roentgenization
/ˌrʌntjənʌɪˈzeɪʃn/ /ˌrʌntɡənʌɪˈzeɪʃn/ /ˌrəːntɡənʌɪˈzeɪʃn/Now rare
noun
Exposure to X-rays; treatment by means of X-rays.
Origin
Early 20th century. From roentgenize + -ation, perhaps originally after German Röntgenisation, itself after Russian rentgenizacija, both in sense ‘exposure to X-rays’.