a.

1. 流行性，傳染的
   The tour group chartered a plane to escape the epidemic region.

   旅行團包機逃離疫區。

2. （風尚等）極為流行的
   Buying goods on the installment plan has become epidemic in recent years.

   近幾年來，用分期付款的辦法購物十分流行。

n.[C]

1. 流行病，時疫；瘟疫
   The president is very worried that the swine flu will become an epidemic.

   總統很擔心豬瘟會形成瘟疫。

2. （流行病的）傳播
   an epidemic of hepatitis

   肝炎的流行

3. （風尚等的）流行

n.

adj.