siderography

siderography [sid-uh-rog-ruh-fee] Word Origin noun

1. the art or technique of engraving on steel.
2. a method of increasing the number of reproductions obtained from a steel engraving by first rolling a soft-steel cylinder over a hardened steel plate and then rolling the hardened cylinder over a soft-steel plate.

Origin of siderography First recorded in 1810–20; sidero-1 + -graphy Related formssid·er·og·ra·pher, nounsid·er·o·graph·ic [sid-er-uh-graf-ik] /ˌsɪd ər əˈgræf ɪk/, adjective