plural of transcranial Doppler

(medicine) a type of Doppler ultrasonography that measures the velocity of blood flow through the brain's blood vessels

plural of Doppler radar

(chiefly meteorology) A radar system using the Doppler effect to measure the radial velocity of detected objects, allowing moving objects (such as airplanes, precipitation, missiles, etc.) to be distinguished from stationary ones and classified by magnitude and direction of their velocity towards or away from the radar site.

(physics) The broadening of the spectral lines of a high-temperature or rapidly-rotating object due to redshifting of spectral lines from atoms and molecules moving away from the observer and blueshifting of spectral lines from atoms and molecules moving toward the observer.

Medical ultrasonography that employs the Doppler effect to perform imaging of the movement of tissues and body fluids (usually blood), and their relative velocity to the probe.

(mineralogy) A brownish-black native hydrocarbon occurring in elastic or jelly-like masses, derived from the maceration of peat.

plural of dopplerite

plural of dopplergram

(astronomy) An image of the sun, made using a modified spectroheliograph, showing showing the approaching and receding motions of its atmosphere.