avoirdupois
/ˌævədəˈpɔɪz/noun
1- a system of weights based on a pound of 16 ounces or 7,000 grains, widely used in English-speaking countries常衡（英语国家广泛使用的重量体系, 1磅等于16盎司或7,000格令）：
as modifier avoirdupois weights常衡重量单位
postpositive a pound avoirdupois.一常衡磅。比较TROY.
1.1
- humorous weight; heaviness〈幽默〉体重：
she was putting on the avoirdupois like nobody's business.
她的体重飞速增长。
词源
Middle English (denoting merchandise sold by weight)： from Old French aveir de peis 'goods of weight'， from aveir 'to have' （infinitive used as a noun， from Latin habere） + peis 'weight' （see POISE1）.