- 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)
WordReference Random House Unabridged Dictionary of American English © 2026
Po•to•mac
(pə tō′mək),USA pronunciation n.
- Place Namesa river flowing SE from the Allegheny Mountains in West Virginia, along the boundary between Maryland and Virginia to the Chesapeake Bay. 287 mi. (460 km) long.
- Place Namesa city in central Maryland, near Washington, D.C. 40,402.
Collins Concise English Dictionary © HarperCollins Publishers::
Potomac /pəˈtəʊmək/ n
'Potomac' also found in these entries (note: many are not synonyms or translations):