Avoirdupois is a system of measuring weight based on the fact that sixteen ounces are in a pound. The metric system is based on grams, and the avoirdupois system is based on pounds.

This odd-looking term means something very common, at least if you live in England or the United States: the avoirdupois system is a standard for measuring weight based on there being sixteen ounces in a pound. If you measure your weight in pounds, you're using the avoirdupois system. If you measure liquids in ounces, you're using the avoirdupois system. This is one of many standards of measurement that exist, such as the metric system, which is based on units of 10.

Primary Meanings of avoirdupois

a system of weights based on the 16-ounce pound (or 7,000 grains)
excess bodily weight
Full Definitions of avoirdupois

n a system of weights based on the 16-ounce pound (or 7,000 grains)

avoirdupois weight
Type of:
system of weights, weight
a system of units used to express the weight of something

n excess bodily weight

blubber, fat, fatness
leanness, spareness, thinness
the property of having little body fat
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adiposeness, adiposity, fattiness
having the property of containing fat
abdominousness, paunchiness
the bodily property of a protruding belly
greasiness, oiliness, oleaginousness
consisting of or covered with oil
corpulency, fleshiness, obesity
more than average fatness
an extreme accumulation of fat on the buttocks
adiposis, corpulence, overweight, stoutness
the property of excessive fatness
exogenous obesity
obesity caused by overeating
embonpoint, plumpness, roundness
the bodily property of being well rounded
Type of:
bodily property
an attribute of the body

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