verb, -pat⋅ed, -pat⋅ing.| 1. | to scatter in various directions; disperse; dispel. |
| 2. | to spend or use wastefully or extravagantly; squander; deplete: to dissipate one's talents; to dissipate a fortune on high living. |
| 3. | to become scattered or dispersed; be dispelled; disintegrate: The sun shone and the mist dissipated. |
| 4. | to indulge in extravagant, intemperate, or dissolute pleasure. |