Source : Webster's Revised Unabridged Dictionary (1913)

Screen \Screen\ (skr[=e]n), v. t. [imp. & p. p. {Screened}; p.
   pr. & vb. n. {Screening}.]
   1. To provide with a shelter or means of concealment; to
      separate or cut off from inconvenience, injury, or danger;
      to shelter; to protect; to protect by hiding; to conceal;
      as, fruits screened from cold winds by a forest or hill.

            They were encouraged and screened by some who were
            in high commands.                     --Macaulay.

   2. To pass, as coal, gravel, ashes, etc., through a screen in
      order to separate the coarse from the fine, or the
      worthless from the valuable; to sift.

Source : WordNet®

screening
     n 1: the display of a motion picture [syn: {showing}, {viewing}]
     2: fabric of metal or plastic mesh
     3: the act of concealing the existence of something by
        obstructing the view of it; "the cover concealed their
        guns from enemy aircraft" [syn: {cover}, {covering}, {masking}]
     4: testing objects or persons in order to identify those with
        particular characteristics