line spectrum

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noun Physics.

an electromagnetic spectrum consisting of discrete lines, usually characteristic of excited atoms or molecules.

Nearby words

  1. line officer,
  2. line one's pockets,
  3. line printer,
  4. line segment,
  5. line space,
  6. line squall,
  7. line storm,
  8. line trimmer,
  9. line up,
  10. line vector


Origin of line spectrum

First recorded in 1870–75

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for line spectrum

  • The defect is also demonstrated by viewing a line-spectrum focused on a ground glass.

    Visual Illusions|Matthew Luckiesh


Science definitions for line spectrum

line spectrum

An image of colored lines or bands of light formed in optical spectroscopy, each line representing one of the frequencies in the spectrum of a light source. The light source is usually broken into individual bands by a prism or a diffraction grating.
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