#spectrum  an ordered array of the components of an emission or wave
  supertype:  array  an orderly arrangement: "an array of troops in battle order"
  subtype:  absorption_spectrum  action_spectrum  electromagnetic_spectrum  emission_spectrum  infrared_spectrum  line_spectrum  microwave_spectrum  radio_spectrum  sound_spectrum  ultraviolet_spectrum  visible_spectrum
  part:  spectrum_line  an isolated component of a spectrum formed by radiation at a uniform frequency

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