irradiation

English

Etymology

From Middle French irradiacion, from Latin irradiatio

Pronunciation

• Rhymes: -eɪʃən

Noun

irradiation (countable and uncountable, plural irradiations)

1. An act of irradiating, or state of being irradiated.
2. (obsolete) illumination; irradiance; brilliance.
3. (obsolete) figurative: mental light or illumination.
4. (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.
5. (uncountable) a process of sterilisation whereby radiation is passed through a bag containing food, utensils, etc., to sterilise the contents.

Derived terms

• photoirradiation

Translations

an act of irradiating, or state of being irradiated

• Finnish: säteilytys (fi)
• French: irradiation (fr) f
• Greek: ακτινοβολία (el) f (aktinovolía)

• Italian: irradiazione f
• Russian: облуче́ние (ru) n (oblučénije) (exposure to radiation), излуче́ние (ru) n (izlučénije)

obsolete: illumination; irradiance; brilliance

• Italian: irradiazione f

• Russian: лучеза́рность (ru) f (lučezárnostʹ), блеск (ru) m (blesk), лучи́стость (ru) f (lučístostʹ), сия́ние (ru) n (sijánije), освеще́ние (ru) n (osveščénije)

obsolete, figurative: mental light or illumination

• Greek: έκλαμψη (el) f (éklampsi)

• Italian: illuminazione (it) f

obsolete: the apparent enlargement of a bright object seen upon a dark ground

a process of sterilisation

• German: Bestrahlung (de) f
• Greek: αποστείρωση (el) f (aposteírosi)

• Italian: sterilizzazione (it) f

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French

Noun

irradiation f (plural irradiations)

1. irradiation

Further reading

• “irradiation” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).