av ‧ oir ‧ du ‧ pois /ˌævwɑːdjuːˈpwɑː, ˌævədəˈpɔɪz $ ˌævərdəˈpɔɪz/ BrE AmE noun [uncountable]
[ Date: 1300-1400 ; Language: Old French ; Origin: avoir de pois 'goods of weight' ]
the system of weighing things that uses the standard measures of the ↑ ounce , ↑ pound , and ↑ ton
⇨ ↑ metric system