ATOMIC NUMBER 86 as NOUN

1. Meaning
   • 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
   Synonym(s)
   • radon (what does radon mean?)
   • Rn (what does Rn mean?)
   Hypernyms(s) atomic number 86 is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • chemical element (what does chemical element mean?)
   • element (what does element mean?)
   • noble gas (what does noble gas mean?)
   • inert gas (what does inert gas mean?)
   • argonon (what does argonon mean?)