| NOUN | phenomenon | Doppler effect, Doppler shift | change in the apparent frequency of a wave as observer and source move toward or away from each other |
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| Meaning | change in the apparent frequency of a wave as observer and source move toward or away from each other. | |
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| Synonym | Doppler shift | |
| Broader | propagation | The movement of a wave through a medium |
| Spanish | efecto Doppler | |
| Catalan | Efecte Doppler | |
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