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radioactivity

UK:^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌreɪdiəʊækˈtɪvɪti/

US:USA pronunciation: IPAUSA pronunciation: IPA/ˌreɪdioʊækˈtɪvɪti/

US:USA pronunciation: respellingUSA pronunciation: respelling(rā′dē ō ak tiv′i tē)

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radioactivity
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Synonyms:

radiant energy, radiation, radioactive particles, Roentgen rays, energy , fallout, contamination

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