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rottenstone

 - 2 dictionary results

rot⋅ten⋅stone

[rot-n-stohn]
–noun
a friable stone resulting from the decomposition of a siliceous limestone, used as a powder for polishing metals.

Origin:
1670–80; rotten + stone
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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rot·ten·stone   (rŏt'n-stōn')   
n.  A soft decomposed limestone, used in powder form as a polishing material.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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