radiation

English Online Dictionary. What means radiation‎? What does radiation mean?

English

Etymology

Borrowed from Latin radiatio, radiationis.

Pronunciation

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

Noun

radiation (countable and uncountable, plural radiations)

1. The shooting forth of anything from a point or surface, like diverging rays of light.

   heat radiation

   • 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).

2. The process of radiating waves or particles.
3. The transfer of energy via radiation (as opposed to convection or conduction).
4. Radioactive energy.

Related terms

• radiate

Derived terms

Translations

Anagrams

• antiradio

French

Etymology

Borrowed from Latin radiatio, radiationem.

Pronunciation

• IPA^(key): /ʁa.dja.sjɔ̃/

Noun

radiation f (plural radiations)

1. radiation (all meaning)

Related terms

• radier

Further reading

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