avoirdupois unit

nouns

any of the units of the avoirdupois system of weights
avoirdupois unit
is a part of
a system of weights and measures based on the foot and pound and second and pint
British Imperial System, British system, English system
is a part of
a system of weights based on the 16-ounce pound (or 7,000 grains)
avoirdupois, avoirdupois weight
is a type of (narrower)
a unit of measurement for mass
mass unit