spectrum

noun
  1. A band of colors produced by the separation of light into its different components; often seen as a rainbow or a display of colors arranged in a sequence. noun
    The sunlight passed through the prism, creating a beautiful spectrum of colors.
    Her dress had a spectrum of shades ranging from deep blue to bright yellow.
  2. A range or scope of different but related ideas, qualities, or activities. noun
    The political party spans a broad spectrum of opinions from conservative to liberal.
    The artist's work covers a wide spectrum of styles, from abstract to realism.
  3. In science and technology, a range of electromagnetic waves or particles with varying frequencies or energies. noun
    Radio waves occupy a different part of the electromagnetic spectrum than X-rays.
    Scientists study the spectrum of electromagnetic radiation to understand various celestial phenomena.