WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / A / atomic number 86 atomic number 86 noun 16 letters Scrabble 20 WWF 26 Definitions noun 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 radonrn Look “atomic number 86” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →