[? from stem of brok-en + -AGE.]
1. A damaged piece in coining money, etc.
1879. 10th Rep. Master of Mint (1880), 38. The reduced number of brockages or faulty pieces produced.
2. Sc. Broken or damaged stuff; broken pottery, glass, biscuits, etc.
Mod. Sc. In making these, there is always a good deal of brockage.