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Doppler
1871, in reference to Christian Doppler (1803-1853), Austrian scientist, who in 1842 explained the effect of relative motion on waves (originally to explain color changes in binary stars); proved by musicians performing on a moving train. Doppler shift (1955) is the change of frequency resulting from the Doppler effect (1894). The surname is literally "Gambler."
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Definitions of Doppler from WordNet
Dictionary entries near Doppler
doozy
dopamine
dope
dopey
doppelganger
Doppler
Dora
dorado
do-rag
Dorcas
Dorchester