rubbing block


Definition of rubbing block

  1. 1 :  an abrasive block that is commonly of sandstone and is used for cleaning, smoothing, or polishing (as marble, building stone, bricks)

  2. 2 :  the part of an electric railway plow that makes contact with a conductor rail in a conduit

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First Known Use of rubbing block


Seen and Heard

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a rounded knoll or a ridge of ice

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