noun
: a grinding mill that consists of a long revolving tube containing flint pebbles or steel balls or slugs and is used for pulverizing (as in cement manufacturing) — compare ball mill
noun
: a grinding mill that consists of a long revolving tube containing flint pebbles or steel balls or slugs and is used for pulverizing (as in cement manufacturing) — compare ball mill
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012