WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / I / indoleacetic acid indoleacetic acid noun 6 syllables 17 letters Scrabble 24 WWF 29 Definitions noun a plant hormone promoting elongation of stems and roots iaa Look “indoleacetic acid” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →