WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / A / atomic number 19 atomic number 19 noun 16 letters Scrabble 20 WWF 26 Definitions noun a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite kpotassium Look “atomic number 19” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →