Answer: dispersing

AnswerCrossword Clue
dispersingCause (gas, smoke, mist, or cloud) to thin out and eventually disappear
dispersingDISPERSE, to scatter (to disperse in all directions)
dispersingThin out and disappear
dispersingDistribute or spread over a wide area
dispersingDivide (light) into constituents of different wavelengths
dispersingGo or cause to go in different directions or to different destinations
dispersingDistribute (small particles) uniformly in a medium