A mystical word used as a charm and engraved on gems among the ancients; also, a gem stone thus engraved.
Its definition shares important concepts with this word: practice, steel, engraving, invented, perkins.Siderography
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 The process has been superseded by electrotypy.
No hand-reviewed synonym set has been published for this word yet.
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