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Webster 1913 Edition

Siderography

Sidˊer-og′ra-phy

,
Noun.
[Gr. [GREEK][GREEK][GREEK] iron +
-graphy
.]
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 The process has been superseded by electrotypy.

Webster 1828 Edition

Siderography

SIDEROG'RAPHY

,
Noun.
[Gr. sidhroV, steel or iron, grajw, to engrave.] and The art or practice of engraving on steel, by means of which, impressions may be transferred from a steel plate to a steel cylinder in a rolling press of a particular construction.

Definition 2024

siderography

siderography

English

Noun

siderography ‎(uncountable)

  1. A 19th-century process of reproducing steel-engraved designs for printing. The design is engraved on a steel block, then hardened and used to transfer a raised-image version to a steel roller under heavy pressure. The roller is then hardened and used as a die to impress duplicate images on printing plates for transferring to paper by the intaglio method.

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