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Siderography is a 12 letter word which starts with the letter S and ends with the letter Y for which we found 1 definitions.

(n.) The art or practice of steel engraving; especially the process invented by Perkins of multiplying facsimiles of an engraved steel plate by first rolling over it when hardened a soft steel cylinder and then rolling the cylinder when hardened over a soft steel plate which thus becomes a facsimile of the original. The process has been superseded by electrotypy.
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