emission line

noun

A spectral line resulting from the emission of electromagnetic radiation from an atom or other species as it decays from an excited state to one of lower energy.

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Meanings

nounemission line (plural emission lines)

plural emission lines

  1. A spectral line resulting from the emission of electromagnetic radiation from an atom or other species as it decays from an excited state to one of lower energy.
Cite this entry
APA

emission line. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/emission%20line

MLA

“emission line.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/emission%20line. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “emission line,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/emission%20line.

Source: emission line on Wiktionary, CC BY-SA 4.0.