радиоактивность

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Russian

Etymology

радиоакти́вный (radioaktívnyj) +‎ -ость (-ostʹ)

Pronunciation

  • IPA(key): [ˌradʲɪɐɐkˈtʲivnəsʲtʲ]

Noun

радиоакти́вность (radioaktívnostʹf inan (genitive радиоакти́вности, nominative plural радиоакти́вности, genitive plural радиоакти́вностей)

  1. radioactivity

Declension