What is 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 called?

milligramme — 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. (Webster's 1913.)

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