radiation

Definition from Wiktionary, the free dictionary
Jump to navigation Jump to search

English[edit]

English Wikipedia has an article on:
Wikipedia

Etymology[edit]

Borrowed from Latin radiatio, radiationis. By surface analysis, radiate +‎ -ion.

Pronunciation[edit]

  • IPA(key): /ˌɹeɪ.di.ˈeɪ.ʃən/
  • (file)
  • (some US dialects) IPA(key): /ɹaɪ.di.ˈaɪ.ʃən/
  • (some Ghanaian speakers) IPA(key): /ɹæ.di.ˈeɪ.ʃən/

Noun[edit]

radiation (countable and uncountable, plural radiations)

  1. The shooting forth of anything from a point or surface, like diverging rays of light.
    heat radiation
  2. The process of radiating waves or particles.
  3. The transfer of energy via radiation.
    Coordinate terms: convection, conduction
  4. Radioactive energy.
  5. (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).

Derived terms[edit]

Related terms[edit]

Translations[edit]

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

See also[edit]

Anagrams[edit]


French[edit]

Etymology[edit]

Borrowed from Latin radiatio, radiationem.

Pronunciation[edit]

Noun[edit]

radiation f (plural radiations)

  1. radiation (all meanings)

Derived terms[edit]

Related terms[edit]

Descendants[edit]

  • Romanian: radiație
  • Turkish: radyasyon

Further reading[edit]