The presence inside the Doctor slowly dissipates as the ship moves away.
Kirk awoke as a wall of blue fire slowly dissipated and darkness returned.
Four years later he was decidedly more competitive, taking the early lead in the final, slowly dissipating into 4th place.
They all sat there in silence as the smoke slowly dissipated.
The anger in him slowly dissipated as questions raced through his mind.
With all the expected reluctance of children, they agreed, and the crowd slowly dissipated back to camp.
They dissipate slowly and linger in the atmosphere long after the airplane has passed.
Decomposition is a natural process of the body, dissipating slowly over time.
So it dissipates slowly, unless there is a strong wind.
The cloud dissipated slowly, as though reluctant to give up its form.