emission spectrum (redirected from Emission spectra)

emission spectrum

n.

The spectrum of bright lines, bands, or continuous radiation characteristic of and determined by a specific emitting substance subjected to a specific kind of excitation.

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emission spectrum

n

(Physics / General Physics) the continuous spectrum or pattern of bright lines or bands seen when the electromagnetic radiation emitted by a substance is passed into a spectrometer. The spectrum is characteristic of the emitting substance and the type of excitation to which it is subjected Compare absorption spectrum

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emission spectrum

The distribution of electromagnetic radiation released by a substance whose atoms have been excited by heat or radiation. A spectroscope can be used to determine which frequencies have been emitted by a substance. The emission spectrum is a combination of the atomic spectra of the various kinds of atoms making up the substance and can be analyzed to determine the substance's chemical or atomic composition. See more at atomic spectrum.

Thesaurus

Noun

1.

emission spectrum - spectrum of electromagnetic radiation emitted by a self-luminous source spectrum - an ordered array of the components of an emission or wave