dissipate

Short definition from Wiktionary

Verb

1. 1
   To drive away, disperse.
2. 2
   To use up or waste; squander.
3. 3
   To vanish by dispersion.
4. 4
   To cause energy to be lost through its conversion to heat.
5. 5
   To be dissolute in conduct.

Adjective

1. 1
   dissipated