radioactivity
Hello, you have come here looking for the meaning of the word radioactivity. In DICTIOUS you will not only get to know all the dictionary meanings for the word radioactivity, but we will also tell you about its etymology, its characteristics and you will know how to say radioactivity in singular and plural. Everything you need to know about the word radioactivity you have here. The definition of the word radioactivity will help you to be more precise and correct when speaking or writing your texts. Knowing the definition ofradioactivity, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
See also: radio-activity
English
Alternative forms
Etymology
radioactive + -ity
Noun
radioactivity (usually uncountable, plural radioactivities)
- Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus.
- The radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc.
Related terms
Translations
emission of ionizing radiation
|
radiation emitted
|
- The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.
Translations to be checked
|
See also
Further reading
Radioactive decay on Wikipedia.Wikipedia
