redshift

noun, verb — 2 senses

redshift

noun

/ˈɹɛdˌʃɪft/

Etymology From red + shift.

1

Natural sciences, Physical sciences, Physics 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.

Derived terms
cosmological redshift, gravitational redshift

redshift

verb

Etymology From red + shift.

1

Natural sciences, Physical sciences, Physics (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.

Derived terms
redshifted
Related terms
Doppler effect

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.