单词	avoirdupois weight
释义	avoirdupois weight noun : the series of units of weight based on the pound of 16 ounces and the ounce of 16 drams see Weights and Measures Table Word History First Known Use 1619, in the meaning defined above Medical Definition avoirdupois weight noun : 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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