Source : Webster's Revised Unabridged Dictionary (1913)

Lamp \Lamp\, n.[OE. (with excrescent p), fr. F. lame, L. lamina.
   See {Lamina}.]
   A thin plate or lamina. [Obs.] --Chaucer.

Lamp \Lamp\, n. [F. lampe, L. lampas, -adis, fr. Gr. ?, ?,
   torch, fr. ? to give light, to shine. Cf. {Lampad},
   {Lantern}.]
   1. A light-producing vessel, instrument or apparatus;
      especially, a vessel with a wick used for the combustion
      of oil or other inflammable liquid, for the purpose of
      producing artificial light.

Source : WordNet®

lamp
     n 1: an artificial source of visible illumination
     2: a piece of furniture holding one or more electric light
        bulbs