What is "sloughs"

Usage examples of "sloughs".

Hundreds of miles of canals and dikes were gouged through the sawgrass meadows, pond apple sloughs and cypress heads.

But those two tumbled, broken-winded, and, indeed, broken-hearted old men had been, as an old author says, so emptied from vessel to vessel--they had had a life of such sloughs and stiff climbs--they had been in hunger and thirst, in cold and nakedness so often--that it was no wonder that their dandiacal companion walked on a little ahead of them.