Slough n.
  1. A place of deep mud or mire; a hole full of mire.
     He's here stuck in a slough.   --Milton.
  2. A wet place; a swale; a side channel or inlet from a river.
  Note: [In this sense local or provincial; also spelt sloo, and slue.]
  Slough grass Bot., a name in the Mississippi valley for grasses of the genus Muhlenbergia; -- called also drop seed, and nimble Will.
  slough grass
       n : North American cordgrass having leaves with dry membranous
           margins and glumes with long awns [syn: prairie
           cordgrass, freshwater cordgrass, Spartina pectinmata]