rubstone
[ ruhb-stohn ]
/ ˈrʌbˌstoʊn /
noun
a stone, especially a whetstone, used for polishing or sharpening.
Words nearby rubstone
rubricated,
rubrician,
rubricyte,
rubrospinal decussation,
rubrum lily,
rubstone,
rubtsovsk,
ruby,
ruby glass,
ruby laser,
ruby silver
British Dictionary definitions for rubstone
rubstone
/ (ˈrʌbˌstəʊn) /
noun
a stone used for sharpening or smoothing, esp a whetstone