avoirdupois

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Related to avoirdupoisly: Avoirdupois system, avoirdupois pound

avoirdupois

, avoirdupois weight
a system of weights used in many English-speaking countries. It is based on the pound, which contains 16 ounces or 7000 grains. 100 pounds (US) or 112 pounds (Brit) is equal to 1 hundredweight and 20 hundredweights equals 1 ton