A grinding mill is a unit operation designed to break a solid material into smaller pieces. There are many different types of grinding mills and many types of materials processed in them. Historically mills were powered by hand, working animal, wind or water . Today they are also powered by electricity.

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  1. A grinding apparatus for substances such as grains, seeds, etc.
    Pepper has a stronger flavor when it is ground straight from a mill.
  2. The building housing such a grinding apparatus.
    My grandfather worked in a mill.
  3. A machine used for expelling the juice, sap, etc., from vegetable tissues by pressure, or by pressure in combination with a grinding, or cutting process.
    a cider mill; a cane mill
  4. A machine for grinding and polishing.
    a lapidary mill
  5. A manufacturing plant for paper, steel, textiles, etc.
    a steel mill
  6. A building housing such a plant.
  7. An establishment that handles a certain type of situation routinely, such as a divorce mill, etc.
  8. an engine
  9. a boxing match, fistfight
  10. A hardened steel roller with a design in relief, used for imprinting a reversed copy of the design in a softer metal, such as copper.
  11. An excavation in rock, transverse to the workings, from which material for filling is obtained.
  12. A passage underground through which ore is shot.
  13. A milling cutter.

Noun (etymology 2)

  1. An obsolete coin with value one-thousandth of a dollar, or one-tenth of a cent.
  2. One thousandth part, particularly in millage rates of property tax.


  1. To grind or otherwise process in a mill or other machine.
    to mill flour
  2. To shape, polish, dress or finish using a machine.
  3. To engrave one or more grooves or a pattern around the edge of (a cylindrical object such as a coin).
  4. (followed by around, about, etc.) To move about in an aimless fashion.
    I didn't have much to do, so I just milled around the town looking at the shops.
  5. To swim underwater.
  6. To beat; to pound.
  7. To pass through a fulling mill; to full, as cloth.
  8. To roll (steel, etc.) into bars.
  9. To make (drinking chocolate) frothy, as by churning.

The above text is a snippet from Wiktionary: mill
and as such is available under the Creative Commons Attribution/Share-Alike License.

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