different between radiation vs radioactive

English

Etymology

Borrowed from Latin radiatio, radiationis.Morphologically radiate +? -ion

Pronunciation

• IPA^(key): /??e?.di.?e?.??n/
• (some US dialects) IPA^(key): /?a?.di.?a?.??n/

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

See also

• nucleomitophobia

Anagrams

• antiradio

French

Etymology

Borrowed from Latin radiatio, radiationem.

Pronunciation

• IPA^(key): /?a.dja.sj??/

Noun

radiation f (plural radiations)

1. radiation (all meaning)

Related terms

• radier

Further reading

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

English

Alternative forms

• radio-active (dated)

Etymology

Coined by Pierre Curie and Marie Curie in 1898 as French radio-actif, equivalent to English radio- +? active.

Pronunciation

• (Received Pronunciation) IPA^(key): /??e?dio??akt?v/
• (US) IPA^(key): /??e?dio??ækt?v/
• Rhymes: -ækt?v

Adjective

radioactive (comparative more radioactive, superlative most radioactive)

1. Exhibiting radioactivity.
2. (figuratively, rare) Dangerous and disgusting, particularly of people or ideas.

   (The addition of quotations indicative of this usage is being sought:)

Derived terms

• nonradioactive
• radioactively

Translations

Noun

radioactive (plural radioactives)

1. Any radioactive substance.
   • 2016, Travis S. Taylor, Les Johnson, On to the Asteroid

     Any ship nearby will receive a lethal dose of gamma rays, neutrons, and other radioactives.

Further reading

• “radioactive”, in Lexico, Dictionary.com; Oxford University Press, 2019–present.
• radioactive on Wikipedia.Wikipedia

French

Adjective

radioactive

1. feminine singular of radioactif