milligram

A unit of mass equal to one thousandth (10⁻³) of a gram.

The thousandth part of a gram, equal to 0.015432, + or about , of a grain.

A measure of weight, in the metric system, being the thousandth part of a gram, equal to the weight of a cubic millimeter of water, or .01543 of a grain avoirdupois.

An SI unit of mass, equivalent to one thousandth of a gram. Symbol: mg

one thousandth (1/1,000) gram