ball mill
noun
a grinding mill in which the material to be ground is tumbled in a drum with heavy balls of iron, steel, or stone.
Origin of ball mill
First recorded in 1900–05
Words nearby ball mill
ball hawk,
ball hockey,
ball ice,
ball joint,
ball lightning,
ball mill,
ball of fire,
ball of foot,
ball of wax,
ball race,
ball tearer
British Dictionary definitions for ball mill
ball mill
noun
engineering
a horizontal cylinder or cone in which a substance, such as a mineral, is ground by rotation with steel or ceramic balls