WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / U / upper mantle upper mantle noun 12 letters Scrabble 17 WWF 23 Definitions noun the upper part of the mantle Look “upper mantle” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →