rottenstone From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounA soft, friable limestone, used in polishes.verbTo polish with rottenstone. Related wordsSynonymsrotten stoneroachcornstonerudstoneroestonesleekstonerosolitecorestonericolitestone-rawgritstoneragstonegritrocktoolstonesoapstonetumblestone References Wiktionary — rottenstone Wikipedia — rottenstone