radioactivity
See also: radio-activity
English edit
Alternative forms edit
Etymology edit
radioactive + -ity
Noun edit
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 edit
Translations edit
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 edit
Further reading edit
- Radioactive decay on Wikipedia.Wikipedia