spectral line


spectral line

noun

Definition of SPECTRAL LINE

:  one of a series of linear images formed by a spectrograph or similar instrument and corresponding to a narrow portion of the spectrum of the radiation emitted or absorbed by a particular source

First Known Use of SPECTRAL LINE

1849

spectral line

noun    (Medical Dictionary)

Medical Definition of SPECTRAL LINE

: one of a series of linear images of the narrow slit of a spectrograph or similar instrument corresponding to a component of the spectrum of the radiation emitted by a particular source

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