WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / T / thermionic emission thermionic emission noun 6 syllables 19 letters Scrabble 27 WWF 31 Definitions noun the emission of electrons from very hot substances thermal emission Look “thermionic emission” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →