line spectrum ExamplesWord Origin noun Physics.
- an electromagnetic spectrum consisting of discrete lines, usually characteristic of excited atoms or molecules.
The defect is also demonstrated by viewing a line-spectrum focused on a ground glass.
line spectrum in Science 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.