radar

ra·dar

noun, often attributive \ˈrā-ˌdär\

Definition of RADAR

1

: a device or system consisting usually of a synchronized radio transmitter and receiver that emits radio waves and processes their reflections for display and is used especially for detecting and locating objects (as aircraft) or surface features (as of a planet)

2

: range of notice <fell off the radar after losing their first three games>

Examples of RADAR

1. The approaching planes were detected by radar.

Origin of RADAR

radio detecting and ranging

First Known Use: 1941

Rhymes with RADAR

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