irradiation
US /iˌreɪ.diˈeɪ.ʃən/
UK /iˌreɪ.diˈeɪ.ʃən/
1.
the process of exposing something to radiation, especially to sterilize or preserve it
:
•
Food irradiation is used to kill bacteria and extend shelf life.
•
The patient underwent irradiation as part of their cancer treatment.