radar

EASA defines “radar” in one regulation. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

‘radar’ means a radio detection device which provides information on range, azimuth and/or elevation of objects;

Article 2 · Standardised European Rules of the Air (SERA) · Regulation (EU) No 923/2012 · Easy Access Rules, 26 Aug 2025 revision · Read Article 2

Also in the aviation glossary

Radar FAA PHAK: A system that uses electromagnetic waves to identify the range, altitude, direction, or speed of both moving and fixed objects such as aircraft, weather formations, and terrain. The term RADAR was coined in 1941 as an acronym for Radio Detection and Ranging. The term has since entered the English language as a standard word, radar, losing the capitalization in the process.

Defined in the same article

accuracy
advisory airspace
advisory route
aerial work
aerobatic flight
aerodrome
aerodrome control service
aerodrome control tower

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