Source : Webster's Revised Unabridged Dictionary (1913)

Midden \Mid"den\, n. [Also {midding}.] [Cf. Dan. m["o]gdynge, E.
   muck, and dung.]
   1. A dunghill. [Prov. Eng.]

   2. An accumulation of refuse about a dwelling place;
      especially, an accumulation of shells or of cinders,
      bones, and other refuse on the supposed site of the
      dwelling places of prehistoric tribes, -- as on the shores
      of the Baltic Sea and in many other places. See {Kitchen
      middens}.

Source : WordNet®

midden
     n 1: (archeology) a mound of domestic refuse containing shells
          and animal bones marking the site of a prehistoric
          settlement [syn: {eitchen midden}, {kitchen midden}]
     2: a heap of dung or refuse [syn: {dunghill}, {muckheap}, {muckhill}]