What does "redshift" mean?

An increase in the wavelength of a photon or of light, corresponding to a lower frequency and a shift toward the red end of the electromagnetic spectrum.

What is a synonym for "redshift"?

Common synonyms include: red shift, red shift.

How do you pronounce "redshift"?

Pronounced //ˈɹɛdˌʃɪft//.

Redshift

//ˈɹɛdˌʃɪft// noun, verb

noun, verb ·Rare ·Advanced level

Definitions

Noun

1
An increase in the wavelength of a photon or of light, corresponding to a lower frequency and a shift toward the red end of the electromagnetic spectrum. countable, uncountable
2
(astronomy) a shift in the spectra of very distant galaxies toward longer wavelengths (toward the red end of the spectrum); generally interpreted as evidence that the universe is expanding wordnet

Verb

1
(ergative) (said of light or a photon) To shift toward the red end of the electromagnetic spectrum; to change to a longer wavelength and a lower frequency.