| doppler weather | 1.38 | Doppler weather radar detected another band of showers over Vieques. | ||
| doppler shift | 0.53 | The faster a car is moving, the higher is the Doppler shift in frequency. | ||
| doppler radar | 0.46 | Never mind Doppler radar, people were saying. | ||
| doppler ultrasound | 0.26 | The test is done with a transcranial Doppler ultrasound, or TCD. |