- 1. n. (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 Source: wordnet
- 2. n:100 n (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 Source: ecdict
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towardastronomydistantendevidenceexpandinggalaxiesinterpretedlongerredshiftspectraspectrumuniversewavelengths