redshift

Fetched 2026-10-26 (cache).

Synonyms: red shift, redshirt, red-shift, red-shirt, redskirt, resift, redshort, redshifts, red shirt

Antonyms: red shift, redshirt, red-shift, red-shirt, redskirt, resift, redshort, redshifts, red shirt

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|physics|:|astronomy|relativity}} An increase in the [[wavelength]] of a [[photon]] or of [[light#Noun|light]] while in transit, corresponding to a lower [[frequency]] and a shift toward the [[red#Adjective|red]] end of the [[electromagnetic spectrum]].

Verb

1. {{lb|en|physics|:|astronomy|relativity}} {{lb|en|ergative}} (said of [[light#Noun|light]] or a [[photon]]) To shift toward the [[red#Adjective|red]] end of the [[electromagnetic spectrum]] while in transit; to change to a longer [[wavelength]] and a lower [[frequency]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.