spectral line

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noun Optics.

a line in a spectrum due to the absorption or emission of light at a discrete frequency.

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Origin of spectral line

First recorded in 1865–70

Words nearby spectral line

spectinomycin, Spector, spectra, Spectracef, spectral, spectral line, spectral luminous efficiency, spectral series, spectral type, spectra yellow, spectre

How to use spectral line in a sentence

Domestically, the prime minister maintains the dubious line that he is the only man who can keep the still-fragile peace.
Cambodia’s Smoke-and-Mirrors Democracy|David Shaftel|January 9, 2015|DAILY BEAST
Last week I turned 40, a bittersweet occasion because I crossed the line to living longer without my mother than with her.
Everyone at This Dinner Party Has Lost Someone|Samantha Levine|January 6, 2015|DAILY BEAST
Completed in 1953 and composed with standard line breaks and punctuation, the book was completely ignored upon submission.
The Lost Novel of Nobel-Winner José Saramago|Charles Shafaieh|January 5, 2015|DAILY BEAST
Is it any wonder that the interests of large corporations and unions get to the front of the line?
The 100 Rich People Who Run America|Mark McKinnon|January 5, 2015|DAILY BEAST

In the end, the line between magic and religion may be something of an artificial one.
Harry Potter and the Torah of Terror|Candida Moss, Joel Baden|January 4, 2015|DAILY BEAST
In this position, the line of cavalry formed the chord of the arc described by the river, and occupied by us.
Blackwood's Edinburgh Magazine, No. CCCXXXIX. January, 1844. Vol. LV.|Various
Our talk ranged from the Panhandle to the Canada line, while our horses jogged steadily southward.
Raw Gold|Bertrand W. Sinclair
I have drawn a Line between the figures at the extream changes, that next below the Line is the extream.
Tintinnalogia, or, the Art of Ringing|Richard Duckworth and Fabian Stedman
My station was on the right of the line, where the breastwork, ending in a redoubt, was steep and high.
Blackwood's Edinburgh Magazine, No. CCCXXXIX. January, 1844. Vol. LV.|Various
The engineer officer charged with preparing the line of retreat reported that the one bridge across the Elster was not sufficient.
Napoleon's Marshals|R. P. Dunn-Pattison

Scientific definitions for spectral line

spectral line

[ spĕk′trəl ]

An isolated bright or dark line in a spectrograph produced by emission or absorption of light of a single wavelength, generally corresponding to a specific shift in the energy of an electron moving from one orbital to another.