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| | Encyclopedia article on Avoirdupois [EncycloZine] (Site not responding. Last check: 2007-10-21) |
 | | The name derives from from an Old French term meaning literally "goods of weight", referring to goods sold by weight (as opposed to by the piece, for example). |
 | | In the avoirdupois system, all units are multiples or fractions of the pound, which is defined as 0.45359237 kg in most of the English-speaking world since 1959. |
 | | Britain, when it began to use this system, added the stone, which was eventually defined as fourteen avoirdupois pounds. |
| encyclozine.com /Avoirdupois (291 words) |
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