mil
mil · noun
Definitions
noun
- 1.
A unit of length equal to one thousandth of an inch (0.001 inch or approximately 0.0254 millimeters), used especially in measuring the thickness of materials.
- 2.
A unit of angular measurement equal to 1/6400 of a full circle, used in military and surveying applications.
- 3.
(Informal) Short for million, especially in reference to money.
Forms
plural: mils
Related words
Synonyms: thousandth of an inch
Etymology
From Latin mille ("thousand"). The measurement unit refers to one-thousandth of an inch. The informal use for "million" is a modern abbreviation.