radiation
English
Etymology
Borrowed from Latin radiatio, radiationis. By surface analysis, radiate + -ion.
Pronunciation
- IPA(key): /ˌɹeɪ.di.ˈeɪ.ʃən/
Audio (Berkshire) (file) - (some US dialects) IPA(key): /ɹaɪ.di.ˈaɪ.ʃən/
- (some Ghanaian speakers) IPA(key): /ɹæ.di.ˈeɪ.ʃən/
Noun
radiation (countable and uncountable, plural radiations)
- The shooting forth of anything from a point or surface, like diverging rays of light.
- heat radiation
- The process of radiating waves or particles.
- The transfer of energy via radiation.
- Coordinate terms: convection, conduction
- Radioactive energy.
- 1986, "Weird Al" Yankovic (lyrics and music), “Christmas at Ground Zero”, in Polka Party!:
- It's Christmas at ground zero / And if the radiation level's OK / I'll go out with you / To see all the new / Mutations on New Year's Day
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- (evolutionary theory, countable) A rapid diversification of an ancestral species into many new forms.
- 2014, Elizabeth Kolbert, chapter 8, in The Sixth Extinction: An Unnatural History, Henry Holt and Company:
- So the question is: have plants and animals retained over this huge amount of time—whole radiations of mammals have come and gone in this period—have they retained these potentially costly characteristics?
- 2016, Donald R. Prothero, The Princeton Field Guide to Prehistoric Mammals (page 136)
- The second [canid group] is the radiation of dogs in South America that began when the first canids arrived about 3 Ma, after crossing the Panama land bridge (Fig. 5.4).
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Derived terms
- background radiation
- electromagnetic radiation
- infrared radiation
- ionizing radiation
- radiation belt
- thermal radiation
- Van Allen radiation belt
Related terms
- radiate
Translations
shooting forth of anything from a point or surface
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process of radiating waves or particles
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transfer of energy via radiation
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radioactive energy
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diversification of an ancestral species
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- The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.
Translations to be checked
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See also
- nucleomitophobia
Anagrams
- antiradio
French
Etymology
Borrowed from Latin radiatio, radiationem.
Pronunciation
- IPA(key): /ʁa.dja.sjɔ̃/
Audio (file)
Noun
radiation f (plural radiations)
- radiation (all meanings)
Derived terms
- ceinture de radiations de Van Allen
Related terms
- radier
Descendants
- → Romanian: radiație
- → Turkish: radyasyon
Further reading
- “radiation”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.