spectrum

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[change] Pronunciation

  • (Canada), (UK) IPA: /ˈspektrəm/
  • IPA: /ˈspɛktrəm/
  • SAMPA: /"spEktr@m/

[change] Noun

Singular
spectrum

Plural
spectra
A spectrum of colors
  1. A range.
  2. Specifically, a range of colors representing light of various frequencies.
  3. (chemistry) The pattern of absorption or emission of radiation that is made by a substance when it is put in contact with an energy such as radiation, heat, electricity, etc.
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