SINCE 1828
avoirdupois weight
nounDefinition 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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How Many Scruples in a Dram?
How Many Scruples in a Dram?
The origins of 8 units of measurement
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The first known use of avoirdupois weight was in 1619
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