Definition of avoirdupois
(Entry 1 of 2)
avoirdupois
adjectiveDefinition of avoirdupois (Entry 2 of 2)
: expressed in avoirdupois weight
one ounce avoirdupois
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Merriam-Webster unabridged
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Time Traveler for avoirdupois
The first known use of avoirdupois was in the 15th century
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