WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / H / hornstone hornstone noun 9 letters Scrabble 12 WWF 13 Definitions noun a fine-grained metamorphic rock formed by the action of heat on clay rocks hornfels Look “hornstone” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →