Avoirdupois

The avoirdupois (pronounced /ˌævərdəˈpɔɪz/; French pronunciation: [avwaʀdypwɑ]) system is a system of weights (or, properly, mass) based on a pound of sixteen ounces. It is the everyday system of weight used in the United States, and is still widely used to varying degrees by many people in Canada, the United Kingdom, and some other former British colonies despite the official adoption of the metric system. The word avoirdupois is from Old French... more
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