a river system of the central US, formed by the confluence of the North Platte and South Platte at North Platte, Nebraska: flows generally east to the Missouri River. Length: 499 km (310 miles)
Platte in American English
(plæt)
river formed in central Nebr. by the North Platte & the South Platte rivers, & flowing eastward into the Missouri: 310 mi (499 km)