A river in southwestern Nebraska that is formed by the North Platte and South Platte rivers and flows for 310 miles (500 km) to join the Missouri River near Omaha.
Definition of Platte River in US English:
Platte River
proper nounˌplat ˈrivər
A river in southwestern Nebraska that is formed by the North Platte and South Platte rivers and flows for 310 miles (500 km) to join the Missouri River near Omaha.