milln.[L. mille a thousand. Cf. Mile.] A money of account of the United States, having the value of the tenth of a cent, or the thousandth of a dollar.()n.[OE. mille, melle, mulle, milne, AS. myln, mylen; akin to D. molen, G. mhle, OHG. mul, muln, Icel. mylna; all prob. from L. molina, fr. mola millstone; prop., that which grinds, akin to molere to grind, Goth. malan, G. mahlen, and to E. meal. 108. See Meal flour, and cf. Moline.]()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.()7. (Mining) An excavation in rock, transverse to the workings, from which material for filling is obtained.()8. A milling cutter. See Illust. under Milling.()9. A pugilistic encounter.(R. D. Blackmore.)10. Short for Treadmill.()11. The raised or ridged edge or surface made in milling anything, as a coin or screw.()12. A building or complex of buildings containing a mill{1} or other machinery to grind grains into flour.()Edge mill, Flint mill, etc. See under Edge, Flint, etc. -- Mill bar (Iron Works), a rough bar rolled or drawn directly from a bloom or puddle bar for conversion into merchant iron in the mill. -- Mill cinder, slag from a puddling furnace. -- Mill head, the head of water employed to turn the wheel of a mill. -- Mill pick, a pick for dressing millstones. -- Mill pond, a pond that supplies the water for a mill. -- Mill race, the canal in which water is conveyed to a mill wheel, or the current of water which drives the wheel. -- Mill tail, the water which flows from a mill wheel after turning it, or the channel in which the water flows. -- Mill tooth, a grinder or molar tooth. -- Mill wheel, the water wheel that drives the machinery of a mill. -- Gin mill, a tavern; a bar; a saloon; especially, a cheap or seedy establishment that serves liquor by the drink. -- Roller mill, a mill in which flour or meal is made by crushing grain between rollers. -- Stamp mill (Mining), a mill in which ore is crushed by stamps. -- To go through the mill, to experience the suffering or discipline necessary to bring one to a certain degree of knowledge or skill, or to a certain mental state.()v. t.[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.(Thackeray.)6. To roll into bars, as steel.()To mill chocolate, to make it frothy, as by churning.()v. i. (Zol.) To swim under water; -- said of air-breathing creatures.()2. To undergo hulling, as maize.()3. To move in a circle, as cattle upon a plain; to move around aimlessly; -- usually used with around.()The deer and the pig and the nilghar were milling round and round in a circle of eight or ten miles radius. (Kipling.)4. To swim suddenly in a new direction; -- said of whales.()5. To take part in a mill; to box.()v. t.1. (Mining) To fill (a winze or interior incline) with broken ore, to be drawn out at the bottom.()2. To cause to mill, or circle round, as cattle.()