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

“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

Lines in the spectrum regularly shifted back and forth, suggesting the star was being tugged by an orbiting companion, Doppler shifting the light.

From Science Magazine

Their Earthcare satellite used a Doppler radar to capture the view.

From BBC

It also carries the first space-based Doppler radar to track the motions of clouds and probe how they fuel storms.

From Science Magazine