WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / M / micro-organism micro-organism noun 14 letters Scrabble 20 WWF 25 Definitions noun any organism of microscopic size microorganism Look “micro-organism” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →