WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / T / thermonuclear reactor thermonuclear reactor noun 21 letters Scrabble 29 WWF 34 Definitions noun a nuclear reactor that uses controlled nuclear fusion to generate energy fusion reactor Look “thermonuclear reactor” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →