rotten stone

See also: rottenstone

English

Noun

rotten stone

  1. (mineralogy) A soft stone used in artistic grinding and polishing, and for cleaning metallic substances. The name is also given to other friable siliceous stones applied to similar uses.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for rotten stone in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)

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