gangue (countable and uncountable, plural gangues)
- (mining) The earthy waste substances occurring in metallic ore.
1995, Paul T. Craddock, Early Metal Mining and Production, page 147:
- Thus the percentage recovery of metal from the ore was much higher than in the primitive process where the semi-vitrified gangue and half-smelted ore are typically rich in prills of copper and copper minerals.
From English gang.
gangue m (Portugal) or f (Brazil) (plural gangues)
- A gang of criminals.