Meanings
nounirradiation (countable and uncountable, plural irradiations)
plural irradiations
- An act of irradiating, or state of being irradiated.
- uncountablea process of sterilization whereby radiation is passed through a bag containing food, utensils, etc., to sterilize the contents.
- countableobsoleteuncountableillumination; irradiance; brilliance.
- countablefigurativelyobsoleteuncountablemental light or illumination.
- countableobsoleteuncountableThe 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.
Synonyms & antonyms
nounSynonym of radiotherapy.
Similar
More synonyms by meaning
nouna column of light (as from a beacon)
Similar
Broader
noun(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Latinirradiatio
- Middle Frenchirradiacion
- Englishirradiation
From Middle French irradiacion, from Latin irradiatio. Morphologically irradiate + -ion.
More words from Middle French, Latin
Full word history & related roots →Translations
Arabic تَشَعُّع, تَشْعِيع
- تَشَعُّع (tašaʕʕuʕ)an act of irradiating, or state of being irradiated
- تَشْعِيع (tašʕīʕ)an act of irradiating, or state of being irradiated
Catalan irradiació
- irradiacióan act of irradiating, or state of being irradiated
Estonian kiiritus
- kiiritusan act of irradiating, or state of being irradiated
Finnish säteilytys
- säteilytysan act of irradiating, or state of being irradiated
French irradiation
- irradiationan act of irradiating, or state of being irradiated
German Bestrahlung, Bestrahlung
- Bestrahlunga process of sterilisation
- Bestrahlungan act of irradiating, or state of being irradiated
Greek αποστείρωση, έκλαμψη
- αποστείρωση (aposteírosi)a process of sterilisation
- έκλαμψη (éklampsi)obsolete, figurative: mental light or illumination
- ακτινοβολία (aktinovolía)an act of irradiating, or state of being irradiated
Hindi किरणन
- किरणन (kiraṇan)an act of irradiating, or state of being irradiated
Indonesian iradiasi
- iradiasian act of irradiating, or state of being irradiated
Italian sterilizzazione, irradiazione
- sterilizzazionea process of sterilisation
- irradiazioneobsolete: illumination; irradiance; brilliance
- illuminazioneobsolete, figurative: mental light or illumination
- irradiazionean act of irradiating, or state of being irradiated
Polish napromieniowanie
- napromieniowaniean act of irradiating, or state of being irradiated
Portuguese irradiação
- irradiaçãoan act of irradiating, or state of being irradiated
Russian лучеза́рность, блеск
- лучеза́рность (lučezárnostʹ)obsolete: illumination; irradiance; brilliance
- блеск (blesk)obsolete: illumination; irradiance; brilliance
- лучи́стость (lučístostʹ)obsolete: illumination; irradiance; brilliance
- сия́ние (sijánije)obsolete: illumination; irradiance; brilliance
- освеще́ние (osveščénije)obsolete: illumination; irradiance; brilliance
- облуче́ние (oblučénije)an act of irradiating, or state of being irradiated
- излуче́ние (izlučénije)an act of irradiating, or state of being irradiated
Swedish bestrålning
- bestrålningan act of irradiating, or state of being irradiated
Rhymes & wordplay
Rhymes with irradiation
informationeducationlocationapplicationassociationadministrationorganizationcorporationregistrationAsianfoundationcommunicationpopulationnavigationstationaccommodationoperationpublicationvacationtransportationevaluationimplementationinstallationnation
All rhymes →Cite this entry
APA
irradiation. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/irradiation
MLA
“irradiation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/irradiation. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “irradiation,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/irradiation.
Source: irradiation on Wiktionary, CC BY-SA 4.0.