verb
Doppler
verb
1
(informal) To pass by while emitting a sound whose pitch changes due to the Doppler effect.
"The ambulance dopplered past, its siren dropping in pitch."
How to Use Doppler
Learner’s notesIn plain EnglishNamed after the physicist Doppler; used informally as a verb for the pitch-shift effect of a passing sound.
Common pairings
Doppler effect
Doppler radar
Word Forms
dopplered past tense, dopplers singular
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The ambulance _____ past, its siren dropping in pitch.
Etymology
From the surname of Austrian physicist Christian Doppler, who first described the effect in 1842.