The Collaborative International Dictionary of English v.0.48:

Screen \Screen\ (skr[=e]n), n. [OE. scren, OF. escrein, escran,
   F. ['e]cran, of uncertain origin; cf. G. schirm a screen,
   OHG. scirm, scerm a protection, shield, or G. schragen a
   trestle, a stack of wood, or G. schranne a railing.]
   1. Anything that separates or cuts off inconvenience, injury,
      or danger; that which shelters or conceals from view; a
      shield or protection; as, a fire screen.
      [1913 Webster]

            Your leavy screens throw down.        --Shak.
      [1913 Webster]

            Some ambitious men seem as screens to princes in
            matters of danger and envy.           --Bacon.
      [1913 Webster]

   2. (Arch.) A dwarf wall or partition carried up to a certain
      height for separation and protection, as in a church, to
      separate the aisle from the choir, or the like.
      [1913 Webster]

   3. A surface, as that afforded by a curtain, sheet, wall,
      etc., upon which an image, as a picture, is thrown by a
      magic lantern, solar microscope, etc.
      [1913 Webster]

   4. A long, coarse riddle or sieve, sometimes a revolving
      perforated cylinder, used to separate the coarser from the
      finer parts, as of coal, sand, gravel, and the like.
      [1913 Webster]

   5. (Cricket) An erection of white canvas or wood placed on
      the boundary opposite a batsman to enable him to see ball
      better.
      [Webster 1913 Suppl.]

   6. a netting, usu. of metal, contained in a frame, used
      mostly in windows or doors to allow in fresh air while
      excluding insects.

   Screen door, a door of which half or more is composed of a
      screen.

   Screen window, a screen inside a frame, fitted for
      insertion into a window frame.
      [PJC]

   7. The surface of an electronic device, as a television set
      or computer monitor, on which a visible image is formed.
      The screen is frequently the surface of a cathode-ray tube
      containing phosphors excited by the electron beam, but
      other methods for causing an image to appear on the screen
      are also used, as in flat-panel displays.
      [PJC]

   8. The motion-picture industry; motion pictures. "A star of
      stage and screen."
      [PJC]