lightning
1. [ noun ] (physics,electricity) abrupt electric discharge from cloud to cloud or from cloud to earth accompanied by the emission of light
Related terms: atmospheric_electricity thunderbolt forked_lightning
2. [ noun ] the flash of light that accompanies an electric discharge in the atmosphere (or something resembling such a flash); can scintillate for a second or more
Related terms: flash sheet_lighting heat_lightning
Similar spelling:   lightening
  lighting
  lighting-up
  listening
  lighten
  Lightner
  lightness
  listing
  lighten_up
  light_unit
  light_time
  Leighton