irradiation.
An act of irradiating, or state of being irradiated.
Meaning & usage
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.
An act of irradiating, or state of being irradiated. Synonym of radiotherapy.
illumination; irradiance; brilliance.
mental light or illumination.
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.
Where this word comes from
From Middle French irradiacion, from Latin irradiatio. Morphologically irradiate + -ion.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.