[ av-er-duh-poiz ]
/ ˌæv ər dəˈpɔɪz /


Informal. bodily weight: He carries around a lot of excess avoirdupois.

Nearby words

  1. avoidance,
  2. avoidance play,
  3. avoidant,
  4. avoidant personality,
  5. avoir.,
  6. avoirdupois weight,
  7. avoirdupois weights,
  8. avon,
  9. avon lake,
  10. avouch

Origin of avoirdupois

1250–1300; Middle English avoir de pois literally, property of weight < Old French, equivalent to avoir (earlier aveir < Latin habēre to have) + de (< Latin ) + pois (earlier peis < Latin pēnsum)

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples 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

Word Origin and History for avoirdupois



1650s, misspelling of Middle English avoir-de-peise (c.1300), from Old French avoir de pois "goods of weight," from aveir "property, goods" (noun use of aveir "have") + peis "weight," from Latin pensum, neuter of pendere "to weigh" (see pendant (n.)). After late 15c., the standard system of weights used in England for all goods except precious metals, precious stones, and medicine.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine 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.