Potomac

Potomac [pəˈtəʊmək]

n

(Placename) 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)

Thesaurus

Noun	1.	Potomac - a river in the east central United States; rises in West Virginia in the Appalachian Mountains and flows eastward, forming the boundary between Maryland and Virginia, to the Chesapeake Bay Potomac River Free State, Maryland, Old Line State, MD - a Mid-Atlantic state; one of the original 13 colonies Old Dominion, Old Dominion State, VA, Virginia - a state in the eastern United States; one of the original 13 colonies; one of the Confederate States in the American Civil War Mountain State, West Virginia, WV - a state in east central United States
	2.	Potomac - term sometimes used to refer to Washington, D.C.