blueshift

== English == === Alternative forms === blue shift === Etymology === From blue +‎ shift. === Pronunciation === IPA(key): /ˈbluːˌʃɪft/ (enPR: blo͞o'-shĭftˌ) Rhymes: -uːʃɪft Hyphenation: blue‧shift === Noun === blueshift (countable and uncountable, plural blueshifts) (physics: astronomy, relativity) A decrease in the wavelength of a photon or of light, corresponding to a higher frequency and a shift toward the blue end of the electromagnetic spectrum. Antonym: redshift ==== Translations ==== === Verb === blueshift (third-person singular simple present blueshifts, present participle blueshifting, simple past and past participle blueshifted) (physics: astronomy, relativity) (ergative) (said of light or a photon) To shift toward the blue end of the electromagnetic spectrum; to change to a shorter wavelength and a higher frequency. Antonym: redshift ==== Derived terms ==== ==== Translations ==== === See also === Doppler effect