siderography

noun

sid·​er·​og·​ra·​phy

ˌsidəˈrägrəfē

plural -es

: the art of engraving steel

especially : a process of multiplying facsimiles of an engraved steel plate by rolling over it when hardened a soft steel cylinder and then rolling the cylinder when hardened over a soft steel plate

Word History

Etymology

International Scientific Vocabulary sider- + -graphy

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