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Noun spectrum has 2 senses
  1. spectrum - an ordered array of the components of an emission or wave
    --1 is a kind of     array
    --1 has part: spectrum line
    --1 has particulars:
     absorption spectrum; action spectrum; atomic spectrum; electromagnetic spectrum; emission spectrum; infrared spectrum; line spectrum; mass spectrum; microwave spectrum; radio spectrum, radio-frequency spectrum; sound spectrum, acoustic spectrum; ultraviolet spectrum; visible spectrum, color spectrum
  2. spectrum - broad range of related values or qualities or ideas or activities
    --2 is a kind of     scope, range, reach, orbit, compass, ambit
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