Doppler effect Meaning in the Cambridge English Dictionary Cambridge dictionaries logo
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of “Doppler effect” in the English Dictionary

"Doppler effect" in British English

See all translations

Doppler effectnoun [U]

uk   /ˈdɒp.lər ɪˌfekt/ us   /ˈdɑː.plɚ ɪˌfekt/ also Doppler shift specialized
a change that seems to happen in the rate of sound or light wave production of an object when its movement changes in relation to another object
(Definition of Doppler effect from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"Doppler effect" in American English

See all translations

Doppler effectnoun [U]

us   /ˈdɑp·lər ɪˌfekt/
physics a change that someone experiences in the frequency of waves, for example, of sound or light, when the distance between that person and the origin of the waves changes
(Definition of Doppler effect from the Cambridge Academic Content Dictionary © Cambridge University Press)
Translations of “Doppler effect”
in Chinese (Simplified) 多普勒效应…
in Chinese (Traditional) 多普勒效應…
What is the pronunciation of Doppler effect?
Add Cambridge dictionaries to your browser to your website
Avoiding common errors with the word enough.
Avoiding common errors with the word enough.
by ,
May 25, 2016
by Liz Walter Enough is a very common word, but it is easy to make mistakes with it. You need to be careful about its position in a sentence, and the prepositions or verb patterns that come after it. I’ll start with the position of enough in the sentence. When we use it with a noun,

Read More 

Word of the Day

ultraviolet

Ultraviolet light has a wavelength that is after the violet (= light purple) end of the range of colours that can be seen by humans. Light of this type causes the skin to become darker in the sun.

Word of the Day

convo noun
convo noun
May 23, 2016
informal a conversation The convo around concussions mostly focuses on guys who play football, but Chastain thinks that this whole thing could be a headache for women too.

Read More