lampshade

from WordNet (r) 3.0 (2006)

lampshade
    n 1: a protective ornamental shade used to screen a light bulb
         from direct view [syn: {lampshade}, {lamp shade}]

from The Collaborative International Dictionary of English v.0.48

lampshade \lampshade\, lamp shade \lamp shade\n.
   a protective ornamental covering used to screen the light
   bulb in a lamp from direct view.
   [WordNet 1.5] lampshell