Source : Webster's Revised Unabridged Dictionary (1913)

Sifter \Sift"er\, n.
   1. One who, or that which, sifts.

   2. (Zo["o]l.) Any lamellirostral bird, as a duck or goose; --
      so called because it sifts or strains its food from the
      water and mud by means of the lamell? of the beak.

Source : WordNet®

sifter
     n : a household sieve (as for flour)