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

His team is working to develop a technique that is based on so-called Doppler telescopes and that can detect when charged particles are headed toward Earth.

From Scientific American

The following afternoon, I sat on a cushioned tree stump in a woodland as one of 35 spectators for the Grid Iron theater company’s hugely enjoyable “Doppler.”

From New York Times

Brewing within the storm is a draft with the right rotation, size, depth and duration for Doppler radar to label it as a mesocyclone: the precursor to a tornado.

From Scientific American

Collins' protocol calls for additional imaging with a 3D or 4D Doppler, which allows a physician to evaluate the nooks and crannies of the fetus and the cord.

From Salon

Doppler radar data revealed a pair of largely disorganized squall lines over northern Illinois between 9 and 10 p.m. local time.

From Washington Post