my·ce·li·um /maɪˈsiliəm/
  菌絲
  my·ce·li·um /maɪˈsɪlɪəm/ 名詞
  (複mycelia)菌絲體
  My·ce·li·um n.  Bot. The white threads or filamentous growth from which a mushroom or fungus is developed; the so-called mushroom spawn. -- My*ce*li*al a.
  ◄ ►
  mycelium
       n : the vegetative part of a fungus consisting of a mass of
           branching threadlike hyphae
       [also: mycelia (pl)]