WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / M / mineral wool mineral wool noun 3 syllables 12 letters Scrabble 16 WWF 20 Definitions noun a light fibrous material used as an insulator rock wool Look “mineral wool” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →