noun a thin plate or lamina.
2. lamp ·noun a device or mechanism for producing light by electricity. ·see incandescent lamp, under incandescent.
3. lamp ·noun figuratively, anything which enlightens intellectually or morally; anything regarded metaphorically a performing the uses of a lamp.
4. lamp ·noun 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.