- avoirdupois unit - any of the units of the avoirdupois system of weights
--1 is a kind of mass unit
--1 is a part of
--1 has particulars:avoirdupois, avoirdupois weight; British Imperial System, English system, British system grain; dram; ounce, oz.; pound, lb; stone; quarter; hundredweight, cwt, long hundredweight; hundredweight, cwt, short hundredweight, centner, cental, quintal; long ton, ton, gross ton; short ton, ton, net ton; kiloton; megaton