WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / U / undulatory theory undulatory theory noun /əndʒələtoʊriθiəri/ 17 letters Scrabble 26 WWF 27 Definitions noun the theory that light is transmitted as waves wave theorywave theory of light Look “undulatory theory” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →