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USN
USNA
usnea
USNR
USO
USP (1)
USP (2)
USPHS
USPO
USPS
usquebaugh
USS
usu.
usual
usufruct
usufructuary
usurp
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USGS
USGS


abbr 
Definition:
 
geology United States Geological Survey
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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