avoirdupois

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av·oir·du·pois

(av'er-du-poyz'),
A system of weights in which 16 ounces make 1 pound, equivalent to 453.59237 g. See Weights and Measures Appendix.
[Fr. to have weight, corrupted fr. O. Fr. avoir, property, + de, of, + pois, weight]

avoirdupois

/av·oir·du·pois/ (av″er-dah-poiz´) (av-wahr″doo-pwah´) see under weight.

av·oir·du·pois

(av'wahr-dū-pwah')
A system of weights in which 16 oz make a pound, equivalent of 453.59237 g. See Weights and Measures appendix.
[Fr. to have weight, corrupted fr. O. Fr. avoir, property, + de, of, + pois, weight]

avoirdupois

a system of weight used in English-speaking countries for all commodities except drugs, precious stones and precious metals. See also Table 4.1. Now largely superseded by the metric system.