Collins English-English Dictionary

dissipate ['dɪsɪ,peɪt]

1. 1. vb to exhaust or be exhausted by dispersion

2. 2. vt. [tr] to scatter or break up

3. 3. vi. [intr] to indulge in the pursuit of pleasure

4. 4. vi. [Etymology] C15: from Latin dissipare to disperse, from dis-¹ + supare to throw