Radioactivity
Definition, Meaning & Examples
Pronunciation /ˌreɪdɪəʊakˈtɪvɪti/ · Part of speech noun
Quick meaning: Radioactivity is a noun meaning Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus.
Meaning
Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus.
More Meanings
- The radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc.
Example Sentences
Today, no one would intentionally smear radioactive materials on their face, but in 1933, the dangers of radioactivity were not yet fully understood.
Word Forms
- radioactivities
- radio-activity
Synonyms for radioactivity
Depending on context, synonyms include activity.
Related Words
Related dictionary entries include activity, radiation, radiological, radionuclide, radioactive, dose.
Related Dictionary Tools
Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.