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1. A machine for grinding or comminuting any
substance, as grain, by rubbing and crushing it between two hard,
rough, or indented surfaces; as, a gristmill, a coffee
mill; a bone mill.

2. 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; as, a cider
mill; a cane mill.

3. A machine for grinding and polishing; as,
a lapidary mill.

4. A common name for various machines which
produce a manufactured product, or change the form of a raw material
by the continuous repetition of some simple action; as, a
sawmill; a stamping mill, etc.

5. A building or collection of buildings with
machinery by which the processes of manufacturing are carried on; as,
a cotton mill; a powder mill; a rolling
mill.

6. (Die Sinking) A hardened steel
roller having a design in relief, used for imprinting a reversed copy
of the design in a softer metal, as copper.


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