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EnglishEdit

EtymologyEdit

actin- +‎ -ide

NounEdit

actinide (plural actinides)

  1. (inorganic chemistry) Any of the 14 radioactive elements of the periodic table that are positioned under the lanthanides, to which they have similar chemistry.

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FrenchEdit

PronunciationEdit

NounEdit

actinide m (plural actinides)

  1. actinide