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[puh-toh-muh k] /pəˈtoʊ mək/
a river flowing SE from the Allegheny Mountains in West Virginia, along the boundary between Maryland and Virginia to the Chesapeake Bay. 287 miles (460 km) long.
a city in central Maryland, near Washington, D.C. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for potomac river


a river in the E central US, rising in the Appalachian Mountains of West Virginia: flows northeast, then generally southeast to Chesapeake Bay. Length (from the confluence of headstreams): 462 km (287 miles)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for potomac river


river in eastern U.S., from Algonquian Patowmeck, originally the name of a native village in Virginia, perhaps literally "something brought."

Online Etymology Dictionary, © 2010 Douglas Harper
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potomac river in Culture
Potomac River [(puh-toh-muhk)]

A river that divides Washington, D.C., from Virginia.

Note: Sometimes used to refer loosely to Washington, D.C.: “Along the Potomac today, Congress met to vote on the budget.”
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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