Doppler effect
nounEtymology From Christian Andreas Doppler, the scientist who first proposed this effect.
1
The apparent change in frequency or wavelength of a wave that is perceived by an observer moving relative to the source of the waves.
- Along the street, a delivery van’s pop music approaches and recedes with a faint Doppler effect, the cheerless band lifting and dipping a microtone.2016, Ian McEwan, Nutshell, Vintage, page 85:
- Synonyms
- Doppler shift
- Related terms
- blueshifted, redshifted