Lexic.us

Definition of Doppler effect

1. Noun. Change in the apparent frequency of a wave as observer and source move toward or away from each other.

Definition of Doppler effect

1. Noun. The apparent change in frequency or wavelength of a wave that is perceived by an observer moving relative to the source of the waves. ¹

¹ Source: wiktionary.com

Medical Definition of Doppler effect

1. Variation in the frequency of a wave (as measured by an observer) due to relative motion between the observer and the source of the wave. (The observed frequency increases if the source is moving towards the observer and vice versa.) The equation can be found in most optics texts and many introductory physics texts. (09 Oct 1997)

Lexicographical Neighbors of Doppler Effect

Literary usage of Doppler effect

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Proceedings of the Iowa Academy of Science by Iowa Academy of Science (1906)
"The example which is perhaps most frequently cited as an illustration of the Doppler effect is the change of pitch of a locomotive bell or whistle or of a ..."

2. The Origin of Spectra by Paul Darwin Foote, Fred Loomis Mohler (1922)
"Two causes, the Doppler effect and Impact Damping, are of particular interest. Doppler effect. From the classical theory, a quasi-elastically bound electron ..."

3. Rays of Positive Electricity and Their Application to Chemical Analyses by Joseph John Thomson (1921)
"Doppler effect SHOWN BY THE POSITIVE RAYS Before the methods described in the earlier part of this book had been fully developed, Stark * had discovered a ..."

4. The Theory of the Relativity of Motion by Richard Chace Tolman (1917)
"The Doppler effect. At the origin of coordinates, x = y = z = 0, in system S we shall evidently ... Doppler effect."

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