siderography

siderography

[sid-uh-rog-ruh-fee]
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:
1810–20; sidero-1 + -graphy

siderographer, noun
siderographic [sid-er-uh-graf-ik] , adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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