WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / S / substantia alba substantia alba noun 15 letters Scrabble 18 WWF 23 Definitions noun whitish nervous tissue of the CNS consisting of neurons and their myelin sheaths white matter Look “substantia alba” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →