Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “radar”

radar

noun [U] uk   /ˈreɪ.dɑːr/ us    /-dɑːr/
a system that uses radio waves to find the position of objects that cannot be seen: Other vessels in the area show up on the ship's radar (screen).Radio
(Definition of radar from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of radar?
Add Cambridge dictionaries to your browser to your website

Definitions of “radar” in other dictionaries

Word of the Day

improvisation

a performance that an actor, musician, etc. has not practised or planned

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More