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Definition of: radioactivity

Our photo definition of radioactivity photo

(rā′dē·ō·ak·tivə·tē) noun Physics
1. The propagation of radiant energy.
2. The spontaneous nuclear disintegration of certain elements and isotopes, with the emission of alpha particles, electrons, positrons, or electromagnetic radiation.
3. A particular form of such disintegration: gamma radioactivity.

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Statistical data

"radioactivity" has the frequency of use of 0.0001% on en.wikipedia.org.

Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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