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Yours, Etc.: Origins and Uses of 8 Sign-Offs

us customary system

us customary system in Science
US Customary System  
Short for United States Customary System. The main system of weights and measures used in the United States and a few other countries. The system is based on the yard as a unit of length, the pound as a unit of weight, the gallon as a unit of liquid volume, and the bushel as a unit of dry volume. See Table at measurement. Compare metric system.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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