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Webster 1913 Edition

Radiation

Raˊdi-a′tion

(rāˊdĭ-ā′shŭn)
,
Noun.
[L.
radiatio
: cf. F.
radiation
.]
1.
The act of radiating, or the state of being radiated; emission and diffusion of rays of light; beamy brightness.
2.
The shooting forth of anything from a point or surface, like the diverging rays of light;
as, the
radiation
of heat
.

Webster 1828 Edition

Radiation

RADIA'TION

,
Noun.
[L. radiatio.]
1.
The emission and diffusion of rays of light; beamy brightness.
2.
The shooting of any thing from a center, like the diverging rays of light.

Definition 2025

radiation

radiation

English

Noun

radiation ‎(countable and uncountable, plural radiations)

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

Derived terms

Translations

Anagrams

French

Etymology

Latin radiatio

Pronunciation

  • IPA(key): /ʁa.dja.sjɔ̃/

Noun

radiation f ‎(plural radiations)

  1. radiation (all meaning)

Etymology

From Latin radiatio.

Pronunciation

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

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