Rubstone definitions

Rubstone

• (n.) A stone for scouring or rubbing; a whetstone; a rub.
Found on http://thinkexist.com/dictionary/meaning/rubstone/

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Rubstone

Rub'stone` noun A stone for scouring or rubbing; a whetstone; a rub.
Found on http://www.encyclo.co.uk/webster/R/101

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rubstone

a stone, esp. a whetstone, used for polishing or sharpening.
Found on https://www.infoplease.com/dictionary/rubstone

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