bright-line spectrum


bright-line spectrum:

see spectrumspectrum,
arrangement or display of light or other form of radiation separated according to wavelength, frequency, energy, or some other property. Beams of charged particles can be separated into a spectrum according to mass in a mass spectrometer (see mass spectrograph).
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bright-line spectrum

[′brīt ‚līn ′spek·trəm] (spectroscopy) An emission spectrum made up of bright lines on a dark background.