WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / L / luminal luminal noun /lumɪnəl/ 3 syllables 7 letters Scrabble 9 WWF 14 Definitions noun a long-acting barbiturate used as a sedative phenobarbitalphenobarbitonepurple heartsodium thiopental Look “luminal” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →