Sifter

noun

1. In <em>milling</em> and <em>baking</em>, a machine for sifting flour preparatory to blending it or using it in baking. It consists of a sieve inclosed in a casing and fitted with a cylindrical brush which, revolving above the sieve, breaks up all the lumps and presses the flour through the sieve.
2. One who sifts, in any sense; especially, one employed in the operation of sifting loose matter.
3. A sieve, particularly one differing in form and use from the common sieve, as for sorting matter of differing sizes, sifting ashes from partly burned coal, or the like.
4. <em>plural</em> Specifically, in <em>ornithology</em>, the lamellirostral birds, as ducks and geese; sievebeaks.
5. One who, or that which, sifts.