Meaning of AVOIRDUPOIS in English

AVOIRDUPOIS

I. ˌa-vər-də-ˈpȯiz, ˈa-vər-də-ˌ noun

Etymology: Middle English avoir de pois goods sold by weight, from Anglo-French, literally, goods of weight

Date: 15th century

1. : avoirdupois weight

2. : weight , heaviness ; especially : personal weight

II. adjective

Date: 1755

: expressed in avoirdupois weight

one ounce avoirdupois

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.