A unit of angular measure which, due to nonuniformity of usage, may have any one of three values: 0.001 radian or approximately 0.0572958°; 1/6400 of a full revolution or 0.5625°; 1/1000 of a right angle or 0.09°.

1. A unit of length, equal to 0.001 inch, or to 2.54 × 10^-5 meter. Also known as milli-inch; thou.

2. See <<milliliter>>