avoirdupois
/ˌævɑːdjuːˈpwɑː//ˌævɚdəˈpɔɪz/
noun
- 1
The official system of weights used in the UK between 1856 and 1963. It had been the customary system in London since 1300.
- 2
The official system of weights used in the USA between 1866 and 1959.
- 3
Weight; heaviness (commonly with humorous intent).
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