Definition of: mil

(mil) noun
1. A unit of length or diameter, equal to one thousandth of an inch or to 25.4001 microns.
2. A milliliter, or one cubic centimeter.
3. Mil. a A unit of angular measure equal to 1/6400 of a circle, or about 0.0560 degree. b A unit of angular measure equal to 0.001 radian.
4. A former monetary unit of Palestine, equal to one thousandth of a pound; also, the coin having this value. [<L mille thousand]