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
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avoirdupois weight
noun
From the M-W Editors
First Known Use of avoirdupois weight
1619
Medical Dictionary
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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Britannica.com: Encyclopedia article about avoirdupois weight
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