protrusion
    n 1: something that bulges out or is protuberant or projects
         from its surroundings; "the gun in his pocket made an
         obvious bulge"; "the hump of a camel"; "he stood on the
         rocky prominence"; "the occipital protuberance was well
         developed"; "the bony excrescence between its horns" [syn:
         bulge, bump, hump, swelling, gibbosity,
         gibbousness, jut, prominence, protuberance,
         protrusion, extrusion, excrescence]
    2: the act of projecting out from something [syn: protrusion,
       projection, jut, jutting]

Protrusion \Pro*tru"sion\, n.
   1. The act of protruding or thrusting forward, or beyond the
      usual limit.
      [1913 Webster]

   2. The state of being protruded, or thrust forward.
      [1913 Webster]