Doppler shift

noun

Definition of Doppler shift

1 : a change in frequency of an electromagnetic radiation caused by the motions of the atoms, molecules, or nuclei in the line of sight
2 : the slight displacement in the positions of the spectrum lines of light from a star or other celestial body due to the Doppler effect

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History and Etymology for Doppler shift

after C.J.Doppler

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Cite this Entry

“Doppler shift.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Doppler%20shift. Accessed 20 Apr. 2021.

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