mil

n.

1. A unit of length equal to one thousandth (10 ^-3) of an inch (0.0254 millimeter), used, for example, to specify the diameter of wire or the thickness of materials sold in sheets.
2. A milliliter; one cubic centimeter.
3. A unit of angular measurement used in artillery and equal to ¹/₆₄₀₀ of a complete revolution.

[Short for Latin mīllēsimus, thousandth, from mīlle, thousand.]

mil² (mĭl)
n.
Slang. A million dollars.

A 1 000th part, such that 1 000 of them make a whole.

length (thou) ¹/₁₀₀₀ in (0.0254 mm, 0.001 in).

volume UK 1907 For pharmaceuticals, the millilitre (16.231~ minims).

plane angle A variety of units having 1 000 to a convenient large unit, i.e. to a right angle, to a radian, or to a revolution or turn. Since, for very small angles, the tangent of an angle is equal to the size of the angle expressed in radians, a convenient angular scale has the radian divided by the range for expressing the height (else width) of the observed object. For example, having thousandths of the radian allows simple progression from the height of the target object in metres to the range in kilometres; it is often called the infantry mil, being 0.001 rad, and gives 6 283.~ mil per turn. An adjusted version has a rounded 6 400 per turn, giving five layers of binary division to get 100 mil; this is the artillery mil, = 0.000 982~ rad (0.056 25°).
[Burington R. S. Amer. Math. Monthly Vol. 48, 188-9 (1941)] An older US artillery mil had 1 000 to the right angle, hence 1 mil = 0.09° (0.001 571~ rad).

To convert from mil-feet to:

cu inches, multiply by 9.425E-06.
centimeters, multiply by 2.54E-03.
feet, multiply by 8.333E-05.
inches, multiply by .001.
kilometers, multiply by 2.54E-03.
yards, multiply by 2.778E-05.

Convert:  Into:  cu inches centimeters feet inches kilometers yards

Result:

One thousandth of an inch (0.001 in.)

IN BRIEF: n. - An angular unit used in artillery; A metric unit of volume equal to one thousandth of a liter; A unit of length equal to one thousandth of an inch; A Cypriot monetary unit equal to one thousandth of a pound.

Tutor's tip: With the new machine we can "mill" (to grind grain) wheat down to a "mil" (one-thousandth of an inch).

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