Meaning of RADAR in English

RADAR

n.

Pronunciation: ' r ā - ˌ där

Function: noun

Usage: often attrib

Etymology: ra dio d etecting a nd r anging

Date: 1941

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>

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.