Definition of Radioactivity in English :
Define Radioactivity in English
Radioactivity meaning in English
Meaning of Radioactivity in English
Pronunciation of Radioactivity in English
Radioactivity pronunciation in English
Pronounce Radioactivity in English
Radioactivity
see synonyms of radioactivityNoun
1. radiation, radioactivity
the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
WordNet Lexical Database for English. Princeton University. 2010.
Radioactivity
see synonyms of radioactivitynoun
the spontaneous emission of radiation from atomic nuclei. The radiation can consist of alpha, beta, and gamma radiation
Collins English Dictionary. Copyright © HarperCollins Publishers
Radioactivity
see synonyms of radioactivityn.
1. Spontaneous emission of radiation, either directly from unstable atomic nuclei or as a consequence of a nuclear reaction.
2. The radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance.
The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.