A river of northern France flowing about 772 km (480 mi) generally northwest to the Bay of the Seine, an inlet of the English Channel, near Le Havre. It has been an important commercial waterway since Roman times and has figured significantly in the histories of Paris, Rouen, and Le Havre.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved.