Word of the Day #6

anneal -  uh-NEEL \  , verb;

1. To toughen or temper.

2. To heat (glass, earthenware, metals, etc.) to remove or prevent internal stress.

3. To free from internal stress by heating and gradually cooling.

4.To fuse colors onto (a vitreous or metallic surface) by heating.

 

Origin:

Anneal  has ancient roots in the Old English root anǣlan , "to kindle."

 

Example - The recipe required that I anneal the chocolate.