irradiation
noun/ɪˌɹeɪdiˈeɪʃən/
Etymology From Middle French irradiacion, from Latin irradiatio. Morphologically irradiate + -ion.
› An act of irradiating, or state of being irradiated.
a process of sterilization whereby radiation is passed through a bag containing food, utensils, etc., to sterilize the contents.
Synonym of radiotherapy.
Obsolete illumination; irradiance; brilliance.
Figuratively, Obsolete mental light or illumination.
Obsolete The apparent enlargement of a bright object seen upon a dark ground, due to the fact that the portions of the retina around the image are stimulated by the intense light; as when a dark spot on a white ground appears smaller, or a white spot on a dark ground larger, than it really is, especially when a little out of focus.
- Derived terms
- chemoirradiation, irradiation illusion, irradiation sickness, microirradiation, photoirradiation, postirradiation, reirradiation, X-irradiation
- Related terms
- nonirradiating, unirradiated