dissipate /ˈdɪsɪˌpeɪt/ CET6+ ( dissipating, dissipated, dissipates )

• 1. 

  V-T/V-I When something dissipates or when you dissipate it, it becomes less or becomes less strong until it disappears or goes away completely. 驱散; 消散 [正式]

  例：

  The tension in the room had dissipated.

  房间里的紧张气氛已经消散了。

• 2. 

  V-T When someone dissipates money, time, or effort, they waste it in a foolish way. 浪费 (金钱、时间、努力等) [正式]

  例：

  He needs someone who can keep him from dissipating his time and energy on too many different things.

  他需要有人来阻止他浪费时间和精力做太多不同的事情。