a yellowish-green, water-insoluble, poisonous powder, CuHAsO 3 , used chiefly as a pigment and as an insecticide.
- Copper belt
noun 1. a region of Central Africa, along the border between Zambia and the Democratic Republic of Congo: rich deposits of copper
[kop-er-uh s] /ˈkɒp ər əs/ noun 1. a town in central Texas.
noun 1. a variety of the European beech, Fagus sylvatica atropunicea, having purplish or copper-red leaves. noun 1. a cultivated variety of European beech that has dark purple leaves
[kop-er-uh s] /ˈkɒp ər əs/ noun, Chemistry. 1. . /ˈkɒpərəs/ noun 1. a less common name for ferrous sulphate