There was a touch of insanity in the proceeding, a sense of lugubrious drollery in the sight; and it was not dissipated by somebody on board assuring me earnestly there was a camp of natives—he called them enemies!
There are no more uses of "dissipate" in the book.
Show samples from other sources
Airborne radiation dissipates over time and distance.
Everyone is frightened right now, but the fear will eventually dissipate.