noun ·Rare ·Advanced level

Definitions

Noun

1. 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. historical, uncountable

Etymology

From sidero- + -graphy.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.