dust

dust (http://definr.com/dust)

     n 1: fine powdery material such as dry earth or pollen that can
          be blown about in the air; "the furniture was covered
          with dust"
     2: the remains of something that has been destroyed or broken
        up [syn: debris, junk, rubble, detritus]
     3: free microscopic particles of solid material; "astronomers
        say that the empty space between planets actually contains
        measurable amounts of dust"
     v 1: remove the dust from, as of furniture
     2: 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"
     3: cover with a light dusting of a substance; "dust the bread
        with flour"
     4: distribute loosely; "He scattered gun powder under the
        wagon." [syn: scatter, sprinkle, dot, disperse]