Backswamp

In geology backswamp is the section of a floodplain where deposits of fine silts and clays settle after a flood. Backswamps usually lie behind a stream`s natural levees. ...
Found on http://en.wikipedia.org/wiki/Backswamp

backswamp

The section of a floodplain where deposits of fine silts and clays settle after a flood. Backswamps usually lie behind a stream's natural levees.
Found on http://www.encyclo.co.uk/local/22291

Backswamp

Marshy low lying area in a stream's floodplain. Commonly found behind levees.
Found on http://www.physicalgeography.net/physgeoglos/b.html

Backswamp

The marshy area of a flood plain at some distance beyond and lower than the natural levees that confine the river.
Found on http://www.evcforum.net/WebPages/Glossary_Geology.html
No exact match found