RADIOACTIVITY


Meaning of RADIOACTIVITY in English

transcription, транскрипция: [ ˈreɪdɪəuækˈtɪvɪtɪ ]

n. the spontaneous disintegration of atomic nucleii, with the emission of usu. penetrating radiation or particles.

English main colloquial, spoken dictionary.      Английский основной разговорный словарь.