#radiant_energy__radiantenergy  energy that is transmitted in the form of (electromagnetic) radiation; energy that exists in the absence of matter
  supertype:  energy  (physics) the capacity of a physical system to do work; the units of energy are joules or ergs; "energy can take a wide variety of forms"
  subtype:  luminous_energy  the energy associated with visible light

No statement uses or specializes radiant_energy; click here to add one.