radioactive

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See also: radioactivé

English[edit]

Alternative forms[edit]

Etymology[edit]

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

Pronunciation[edit]

Adjective[edit]

radioactive (comparative more radioactive, superlative most radioactive)

  1. Exhibiting radioactivity.
  2. (figuratively, rare) Dangerous and disgusting, particularly of people or ideas.
    Even sleazy tactics and his radioactive mouth may not be able to contain this debacle.
    (The addition of quotations indicative of this usage is being sought:)

Derived terms[edit]

Translations[edit]

Noun[edit]

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[edit]


French[edit]

Adjective[edit]

radioactive

  1. feminine singular of radioactif