Main Page | See live article | Alphabetical index


The avoirdupois system is a system of weights defining terms such as pound and ounce. It is the everyday system of weight used in the United States, and was used in the United Kingdom and elsewhere until metrication. It is considered more modern and standardised than the alternative troy or "apothecary" system.

See also: Imperial unit and US customary units.

This article is a stub. You can help Wikipedia by fixing it.