avoirdupois weight

noun

Definition of avoirdupois weight 

: the series of units of weight based on the pound of 16 ounces and the ounce of 16 drams — see Weights and Measures Table

First Known Use of avoirdupois weight

1619, in the meaning defined above

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The first known use of avoirdupois weight was in 1619

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avoirdupois weight

noun

Medical Definition of avoirdupois weight 

: a system of weights based on a pound of 16 ounces and an ounce of 437.5 grains (28.350 grams) and in general use in the United States except for precious metals, gems, and drugs

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