noun
1. : a mass of drifting clouds
2. : a method of distributing by airplane a powdered insecticide that drifts slowly like a cloud over the area under treatment
noun
1. : a mass of drifting clouds
2. : a method of distributing by airplane a powdered insecticide that drifts slowly like a cloud over the area under treatment
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012