blue shift

- See Also:
- - blue line
  - blue metal
  - blue mould
  - blue note
  - blue pencil
  - Blue Peter
  - blue pointer
  - blue riband
  - blue rinse
  - blue roan
  - blue shift
  - blue tit
  - blue vinny
  - blue vitriol
  - blue whale
  - blue-chip
  - blue-collar
  - blue-eyed boy
  - blue-eyed Mary
  - blue-green algae
  - blue-plate
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Concise Oxford English Dictionary © 2008 Oxford University Press:
blue shift

▶noun Astronomy the displacement of the spectrum to shorter wavelengths in the light coming from distant celestial objects moving towards the observer. Compare with red shift.

'blue shift' also found in these Oxford entries:

red shift

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blue shift