- a river in E Iowa, flowing SE to the Mississippi River. 255 miles (410 km) long.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for wapsipinicon
The earliest settlers located along the Wapsipinicon river where the soil is of a poorer quality than it was on the open prairie.
The first settlement was on the north side of the Wapsipinicon river around two springs.
About the same time the western part of the township south of the Wapsipinicon river was settled.