fomite
  汙染物; 汙染物質
  fo·mite /ˈfoˌmaɪt/ 名詞
  汙染物,傳染媒(介)
  fomite
       n : any inanimate object (as a towel or money or clothing or
           dishes or books or toys etc.) that can transmit
           infectious agents from one person to another [syn: vehicle]