WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / R / rhombencephalon rhombencephalon noun 15 letters Scrabble 29 WWF 34 Definitions noun the posterior portion of the brain including cerebellum and brainstem hindbrain Look “rhombencephalon” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →