#electromagnetic_spectrum__electromagneticspectrum  the entire frequency range of electromagnetic waves
  part:  #radio_frequency  #extremely_low_frequency  #very_low_frequency  #low_frequency  #medium_frequency  #high_frequency  #very_high_frequency  #ultrahigh_frequency  #superhigh_frequency  #extremely_high_frequency  #actinic_radiation  #gamma_radiation  #infrared_spectrum  #visible_light  #line.electromagnetic_radiation  #microwave  #microwave_spectrum  #radio_spectrum  #ultraviolet_spectrum  #visible_spectrum
  supertype:  #spectrum  an ordered array of the components of an emission or wave
     supertype:  #array  an orderly arrangement: "an array of troops in battle order"
        supertype:  #arrangement  an orderly grouping (of things or persons)
           supertype:  #group__grouping  any number of entities (members) considered as a unit
              supertype:  pm#collection  something gathering separated things (entities/situations)
                 supertype:  pm#divisible_entity__divisibleentity  many classifications under this category are application-dependant
                    supertype:  pm#entity  something that can be "involved" in a situation
                       supertype:  pm#thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                    supertype:  pm#divisible_thing__divisiblething
                       supertype:  pm#thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type

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