Doppler

American  

[dop-ler] / ˈdɒp lər /

noun

1. Christian Johann, 1803–53, Austrian physicist: discovered the Doppler effect.

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Doppler Scientific  

/ dŏp′lər /

1. Austrian physicist and astronomer who in 1842 explained the effect, now named for him, of variations in the frequency of waves as a result of the relative motion of the wave source with respect to the observer.

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Example Sentences

Transcranial Doppler ultrasound tracks how quickly blood travels through the brain's major arteries.

From Science Daily

This is what people did in the old days before satellite imagery and Doppler radar.

From Literature

"But young stars are so extremely spotty, active, and temperamental, that the Doppler method is a non-starter."

From Science Daily

“At 8:53 a.m. Doppler radar indicated thunderstorms producing heavy rain across the warned area,” an alert warned.

From Los Angeles Times

These motions appear as slight Doppler shifts in the star's light.

From Science Daily