Radar

Pronunciation

• IPA: /ˈreɪdɑː(r)/

Origin

Originally spelled RADAR; an acronym of radio detection and ranging.

Full definition of radar

Noun

1. (uncountable) A method of detecting distant objects and determining their position, velocity, or other characteristics by analysis of sent radio waves (usually microwaves) reflected from their surfaces
2. (countable) A type of system using such method, differentiated by platform, configuration, frequency, power, and other technical attributes.
3. (countable) An installation of such a system or of the transmitting and receiving apparatus.
4. (countable, figuratively) A superior ability to detect something.His sensitive radar for hidden alliances keeps him out of trouble.

Synonyms

• RADAR (acronym of radio detection and ranging)

Derived terms

Related terms

• lidar
• sonar

Verb

1. To scan with radar, or as if with radar.
• 2002, Brian Jonathan Wolk, Ohio Traffic Tickets are for the Birds, He radars you while he's sitting in his patrol vehicle under a bridge.