radioactivity
English
AI In plain words
Writing a short explanation…
Written by a house AI from the entry below, in your language. The entry itself is the source.
radioactivity
- /ˌreɪdɪəʊakˈtɪvɪti/
Where it comes from
From radioactive + -ity or radio- + activity.
noun radioactivities · radio-activity
- Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus. Today, no one would intentionally smear radioactive materials on their face, but in 1933, the dangers of radioactivity were not yet fully understood.
- The radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc.
Translations
Every language
noun emission of ionizing radiation
| Español | radioactividad |
|---|---|
| 한국어 | 방사능 bangsaneung |
| 日本語 | 放射能 hōshanō |
| 中文 | 放射性 fàngshèxìng |
| हिन्दी | विकिरणशीलता vikirṇaśīltā |
| Português | radioatividade |
| Français | radioactivité |
| Deutsch | Radioaktivität |
| Ελληνικά | ραδιενέργεια radienérgeia |
| Română | radioactivitate |
| Русский | радиоакти́вность radioaktívnostʹ |
| Tiếng Việt | sự phóng xạ |
| עברית | רדיואקטיביות radioaktíviyut |
noun radiation emitted
| Español | radioactividad |
|---|---|
| 中文 | 放射 fàngshè, 放射線 /放射线 fàngshèxiàn |
| हिन्दी | विकिरण vikiraṇ |
| Português | radioatividade |
| Français | radioactivité |
| Deutsch | Radioaktivität |
| Ελληνικά | ραδιενέργεια radienérgeia |
| Русский | радиоакти́вность radioaktívnostʹ |
| עברית | קרינה kriná |
Talk about this word "radioactivity." Wiktionary, via Micwyn, micwyn.com/word/radioactivity. Accessed 6 Nov. 2026. radioactivity. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/radioactivity "radioactivity." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/radioactivity.Cite this
@misc{radioactivity_2026,
title = {radioactivity},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/radioactivity},
urldate = {2026-11-06}
}
