Siderography
[sid-uh-rog-ruh-fee] /ˌsɪd əˈrɒg rə fi/
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.
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adjective 1. (of a cell or tissue) having an affinity for iron. 2. Geology. (of a chemical element in the earth) having an affinity for metallic iron. noun 3. a siderophile element, tissue, or cell.