[ av-er-duh-poiz ]
/ ˌæv ər dəˈpɔɪz /
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Informal. body weight: He carries around a lot of excess avoirdupois.



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Origin of avoirdupois

First recorded in 1250–1300; Middle English avoir de pois literally, “goods of weight, property of weight,” from Old French aver “goods, property,” equivalent to avoir (earlier aveir, from Latin habēre “to have”) + de “of” (from Latin ) + pois (earlier peis, from Latin pēnsum “something weighed, weight,” from pendere “to weigh, weigh out”)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for avoirdupois

British Dictionary definitions for avoirdupois


avoirdupois weight

/ (ˌævədəˈpɔɪz, ˌævwɑːdjuːˈpwɑː) /


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 tonAbbreviation: avdp, avoir

Word Origin for avoirdupois

C14: from Old French aver de peis goods of weight
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for avoirdupois

[ ăv′ər-də-poiz ]


Avoirdupois weight.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.