Meaning & use

mil

noun·Advanced

A unit of length equal to one thousandth of an inch, used especially to measure the thickness of wire, plastic, or coatings.

See it in a sentence

The trash bags are made from four-mil plastic for extra durability.

Engineers specified a coating thickness of two mils on the metal component.

A note on using this word

Do not confuse mil, a unit of thickness, with mill, a factory, or with the metric prefix milli-, meaning one thousandth.

Words with a similar meaning

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