plume; trickle(of water, blood, etc.; a small amount • a trickle of water; At first there was only a trickle of people but soon a crowd arrived); rivulet(напр., крови Pickman); dribble; wisp(дыма • ... long wisp of pale smoke curled up from the roof. (J.Fowles, "The Magus")goorun); wisp(of smoke)
