Engelsk substantiv: radon | |||
| 1. | radon (om masse eller substans) a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health | ||
| Ord med samme betydning (synonymer) | atomic number 86, Rn | ||
| Mindre spesifikke uttrykk | argonon, chemical element, element, inert gas, noble gas | ||