Source : Webster's Revised Unabridged Dictionary (1913)

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.