interstellar line

noun

Definition of interstellar line

: one of the dark spectral lines of a star or other distant celestial body that is caused by the absorption of atoms and molecules in the intervening interstellar gas and that does not partake of the Doppler shift of the spectral lines produced in the star itself

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Learn More About interstellar line

Dictionary Entries Near interstellar line

interstellar

interstellar line

intersternite

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Cite this Entry

“Interstellar line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interstellar%20line. Accessed 17 Oct. 2021.

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