The Collaborative International Dictionary of English v.0.48:
Sifter \Sift"er\, n. 1. One who, or that which, sifts. [1913 Webster] 2. (Zool.) 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. [1913 Webster]WordNet (r) 3.0 (2006):
sifter n 1: a household sieve (as for flour)