redshift — قاموس الإنجليزية

اسم

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

   الاستعمال

   • معدود
   • غير معدود

   الأضداد

   blueshift

فعل

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

   الأضداد

   blueshift

   كلمات ذات صلة

   Doppler effect

اسم

1. (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

   مرادفات

   red shift

   مصطلحات أعمّ

   propagation