Pronunciation: (rōn),[key] —n. 1. a river flowing from the Alps in S Switzerland through the Lake of Geneva and SE France into the Mediterranean. 504 mi. (810 km) long.
2. a department in E Central France: wine-growing region. 1,429,647; 1104 sq. mi. (2860 sq. km). Cap.: Lyons. French, RhônePronunciation: (rōn).[key]