Milligram

{ Mil″li‐gram, Mil″li‐gramme } (?), n. [F. milligramme; milli- milli- + gramme. See 3d Gram.] 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.