- an electromagnetic spectrum consisting of discrete lines, usually characteristic of excited atoms or molecules.
Origin of line spectrum
First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for line spectrum
The defect is also demonstrated by viewing a line-spectrum focused on a ground glass.Visual Illusions
- 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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