Mill \Mill\, v. t. [imp. & p. p. Milled; p. pr. & vb. n. Milling.]

[See Mill, n., and cf. Muller.]

1. To reduce to fine particles, or to small pieces, in a mill; to grind; to comminute.

2. To shape, finish, or transform by passing through a machine; specifically, to shape or dress, as metal, by means of a rotary cutter.

3. To make a raised border around the edges of, or to cut fine grooves or indentations across the edges of, as of a coin, or a screw head; also, to stamp in a coining press; to coin.

4. To pass through a fulling mill; to full, as cloth.

5. To beat with the fists. [Cant] --Thackeray.

6. To roll into bars, as steel.

To mill chocolate, to make it frothy, as by churning.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Milling \Mill"ing\, n. The act or employment of grinding or passing through a mill; the process of fulling; the process of making a raised or intented edge upon coin, etc.; the process of dressing surfaces of various shapes with rotary cutters. See Mill.

High milling, milling in which grain is reduced to flour by a succession of crackings, or of slight and partial crushings, alternately with sifting and sorting the product.

Low milling, milling in which the reduction is effected in a single crushing or grinding.

Milling cutter, a fluted, sharp-edged rotary cutter for dressing surfaces, as of metal, of various shapes.

Milling machine, a machine tool for dressing surfaces by rotary cutters.

Milling tool, a roller with indented edge or surface, for producing like indentations in metal by rolling pressure, as in turning; a knurling tool; a milling cutter.

Source: Webster's Revised Unabridged Dictionary (1913)