- the material, chiefly sand or gravel, deposited by meltwater streams in front of a glacier.
Origin of outwash
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for outwash
This outwash plain was a veritable paradise of bloom in the days before the advent of the plow.Baraboo, Dells, and Devil's Lake Region
H. E. Cole
Thus arose the type of stratified drift variously known as overwash plains, outwash plains, morainic plains, and morainic aprons.
Good examples of overwash or outwash plains may be seen at various points in the vicinity of Baraboo.
A good example of an outwash plain occurs southwest of Baraboo, flanking the moraine on the west (Fig. 41).
From this point north to the Baraboo river the moraine scarcely rises above the edge of the outwash beyond.
- a mass of gravel, sand, etc, carried and deposited by the water derived from melting glaciers