# Doppler effect definition

• noun:
• The obvious improvement in regularity or wavelength of a wave that is sensed by an observer moving relative to the origin of the waves.
• improvement in the evident frequency of a wave as observer and origin move toward or away from each other

## Related Sources

• Definition for "Doppler effect"
• The obvious improvement in regularity or wavelength of…
• Synonym for "Doppler effect"
• Doppler shift
• Hypernym for "Doppler effect"
• propagation
• Cross Reference for "Doppler effect"
• redshifted
• Astronomy Dictionary for "Doppler effect"
• the apparent change in wavelength of…