epidemical
  (a.)傳染性的;流行性的
  ep·i·dem·i·cal /-ɪkəl/ 形容詞
  adj.流行性的
  Ep·i·dem·ic Ep·i·dem·ic·al a.
  1. Med. Common to, or affecting at the same time, a large number in a community; -- applied to a disease which, spreading widely, attacks many persons at the same time; as, an epidemic disease; an epidemic catarrh, fever, etc.  See Endemic.
  2. Spreading widely, or generally prevailing; affecting great numbers, as an epidemic does; as, epidemic rage; an epidemic evil.
     It was the epidemical sin of the nation.   --Bp. Burnet.
  ◄ ►