WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / D / diurnal variation diurnal variation noun 17 letters Scrabble 20 WWF 25 Definitions noun fluctuations that occur during each day Look “diurnal variation” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →