WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / H / hydroxide ion hydroxide ion noun 13 letters Scrabble 27 WWF 26 Definitions noun the anion OH having one oxygen and one hydrogen atom hydroxyl ion Look “hydroxide ion” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →