blueshift.
A decrease in the wavelength of a photon or of light while in transit, corresponding to a higher frequency and a shift toward the blue end of the electromagnetic spectrum.
Meaning & usage
A decrease in the wavelength of a photon or of light while in transit, corresponding to a higher frequency and a shift toward the blue end of the electromagnetic spectrum.
Where this word comes from
From blue + shift.
(ergative) (said of light or a photon) To shift toward the blue end of the electromagnetic spectrum while in transit; to change to a shorter wavelength and a higher frequency.
Where this word comes from
From blue + shift.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.