Siderography

Definitions

  • Webster's Revised Unabridged Dictionary
    • n 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 The process has been superseded by electrotypy.
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Century Dictionary and Cyclopedia
    • n siderography The art or practice of engraving on steel: particularly applied to the transfer process of Perkins. In this process the design is first engraved on a steel block, which is afterward hardened, and the engraving transferred to a steel roller under heavy pressure, the roller being afterward hardened and used as a die to impress the engraving upon the printing-plate.
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Chambers's Twentieth Century Dictionary
    • n Siderography sid-ėr-og′ra-fi steel-engraving
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Etymology

Webster's Revised Unabridged Dictionary
Gr. iron + -graphy,
Chambers's Twentieth Century Dictionary
Gr. sidēros, iron, graphein, engrave.