|
|
 |
|
|
|
|
| blue·shift [ bl shìft ] (plural blue·shifts) |
noun |
|
| Definition: |
| |
wavelength displacement indicating decreasing distance: a displacement in the wavelengths of spectral lines toward the blue end of the visible spectrum, indicating that the radiation source and observer are approaching each other.
See also Doppler effect
|
|
|
|
