DuckCorp Dico

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1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Slough \Slough\, n. [OE. slogh, slough, AS. sl[=o]h a hollow
      place; cf. MHG. sl[=u]ch an abyss, gullet, G. schlucken to
      swallow; also Gael. & Ir. sloc a pit, pool. ditch, Ir. slug
      to swallow. Gr. ????? to hiccough, to sob.]
      1. A place of deep mud or mire; a hole full of mire.
         --Chaucer.
         [1913 Webster]
               He's here stuck in a slough.          --Milton.
         [1913 Webster]
      2. [Pronounced sl[=oo].] 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.]
            [1913 Webster]
      Slough grass (Bot.), a name in the Mississippi valley for
         grasses of the genus Muhlenbergia; -- called also drop
    seed, and nimble Will.
         [1913 Webster]