pulverulent

from The Collaborative International Dictionary of English v.0.48
Pulverulent \Pul*ver"u*lent\, a. [L. pulverulentus, fr. pulvis,
   pulveris, dust, powder: cf. F. pulv['e]rulent.]
   Consisting of, or reducible to, fine powder; covered with
   dust or powder; powdery; dusty.
   [1913 Webster]
    

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