dust

fine powdery material such as dry earth or pollen that can be blown about in the air; "the furniture was covered with dust"

the remains of something that has been destroyed or broken up

free microscopic particles of solid material; "astronomers say that the empty space between planets actually contains measurable amounts of dust"

remove the dust from; "dust the cabinets"

rub the dust over a surface so as to blur the outlines of a shape; "The artist dusted the charcoal drawing down to a faint image"

cover with a light dusting of a substance; "dust the bread with flour"

distribute loosely; "He scattered gun powder under the wagon"