rubbing block


Definition of rubbing block

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

1843, in the meaning defined above

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The first known use of rubbing block was in 1843

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Cite this Entry

“Rubbing block.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2020.

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