mid·den /ˈmɪdṇ/
  貝塚,堆肥
  Mid·den n. [Also midding.]
  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.
  ◄ ►
  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]