All the surprise and suspense, and every other painful part of the morning dissipated by this conversation, she re-entered the house so happy as to be obliged to find an alloy in some momentary apprehensions of its being impossible to last.
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.