Definition of "redshift" [redshift]

• A change in the wavelength of light, in which the wavelength is longer than when it was emitted at the source. (noun)
• The statistical bias towards Republican (or Blue Dog) candidates of US federal elections whose reported results vary considerably from those indicated by voter exit polls. (noun)

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• "Conversely, to achieve a certain redshift in such a universe, the light has to travel a greater distance than it would in a uniformly expanding universe, in which case the supernova has to be farther away and therefore appear dimmer."
• "The stretching makes visible light look redder, which is known as the redshift."
• "Edwin Hubble observed and measured the departure of galaxies using a technique known as the redshift in physics."