† siderotechnyn. [ < sidero-comb. form1 + -technycomb. form, after French sidérotechnie (1775)] Obsolete the art of working iron; the metallurgy of iron and steel.
ΚΠ
1863 Pract. Mechanic's Jrnl. Jan. 253/1 This single branch of metallurgy, siderotechny—the manufacture of steel is..pregnant with consequences.
1896 Amer. Anthropologist9 191 (heading) Absence of siderotechny from America.