sieve


sieve (http://definr.com/sieve)

     n : a strainer for separating lumps from powdered material or
         grading particles [syn: screen]
     v 1: examine in order to test suitability; "screen these
          samples"; "screen the job applicants" [syn: screen, {screen
          out}, sort]
     2: check and sort carefully; "sift the information" [syn: sift]
     3: separate by passing through a sieve or other straining
        device to separate out coarser elements; "sift the flour"
        [syn: sift, strain]
     4: distinguish and separate out; "sift through the job
        candidates" [syn: sift]