Pronunciation: (mil),[key] —n. 1. a unit of length equal to 0.001 of an inch (0.0254 mm), used in measuring the diameter of wires.
2. a military unit of angular measurement equal to the angle subtended by 1/6400 of a circumference.
3. (less accurately) the angle subtended by an arc equal to 1/1000 of the radius or distance.
4. (used formerly in pharmaceutical prescriptions) a milliliter.
5. a former bronze coin of the mandate of Palestine, the 1000th part of a pound.