Filled, covered, or sprinkled with dust; clouded with dust; as, a dusty table; also, reducing to dust.
And all our yesterdays have lighted fools The way to dusty death. Shak.
Like dust; of the color of dust; as a dusty white.
Dusty miller Bot., a plant (Cineraria maritima); -- so called because of the ashy-white coating of its leaves.