To susceptible to great temperature and then cool off slowly as cup cast-iron metal or any other metal for the purpose of making this less brittle to temper to toughen
- bring to a desired persistence, texture, or stiffness by an activity of gradually heating and cooling
- To subject to great temperature, then cool slowly, as glass, cast iron, metallic, or any other metal, for the intended purpose of rendering it less brittle; to temper; to toughen.
- To heat, as glass, tiles, or earthenware, so that you can fix the colors laid in it.
Old English on
(v. t.) To at the mercy of great temperature, and then cool gradually, as cup, cast-iron, metal, or other metal, for the true purpose of rendering it less brittle; to temper; to toughen.
- (v. t.) To warm, as glass, tiles, or earthenware, in order to fix the colors laid on it.
At the Vienna mint the practice has been to anneal silver bars after each passage through the rolls.