Definitions
measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects
Word origin
The noun is derived from RADAR by anacronymic evolution. RADAR is an acronym of ra(dio) d(etection) a(nd) r(anging) which was coined by Lieutenant-Commander Samuel M. Tucker and Lieutenant-Commander F. R. Furth of the United States Navy in November 1940.
Used in a sentence
“They were able to find the enemy fleet using radar.”
“The Ministry of Defence funded the development of an entirely new radar and improved avionics.”
“Evidence as to the audio monitor's reading is required to prove the [police] officer used the radar unit properly, and must be shown in order to secure a conviction for speeding when using radar.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Detection system”5 letters
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