radiolocationn.
/ˌreɪdɪəʊlə(ʊ)ˈkeɪʃn/, U.S. /ˌreɪdioʊˌloʊˈkeɪʃ(ə)n/ 1. A place considered in respect of its suitability for radio reception or transmission.Apparently an isolated use.
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1926 Geogr. Jrnl. 67 539 Ascertaining that Vista Alegre was a poor radio location, we placed our equipment aboard a batalao, towed by a steam launch.
2. The use of radio for determining the position of something by means of reflected radio waves or transmitted signals, esp. for the purpose of navigation or tracking; spec. (originally British, now historical) radar, as first developed for locating enemy ships and aircraft.
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the mind > attention and judgement > discovery > instrument for detection > [noun] > radar system
radiolocation1935
televisibility1940
radar1941
precision approach radar1950
PAR1951
MTI1956
AWACS1966
1935 Concl. Comm. Air Def. (P.R.O. CAB 16/132) 26 (heading) Establishment of a centre for radio location.
1941 Hutchinson's Pict. Hist. War 14 May 180 Radiolocation has been described by Air Chief Marshall Sir Philip Joubert as Britain's secret weapon against the German bomber.
1941 Flight 26 June 430/1 In the Battle of Britain the advantages of radiolocation were even more apparent.
1969 Symp. Space & Radiocommunication (I.T.U., Paris) 30 During satellite launching frequencies are needed for (a) radiolocation or tracking, (b) telemetering, (c) control.
1990 Sciences July 8/2 Using the radio location device, one party enters the cave with a transmitter, while another waits on the surface with a receiver.
1995 P. Woodward My Own Right Time i. 6 I had the extraordinarily good fortune to work alongside the cream of Britain's young scientists on ‘radiolocation’, later to be called radar.
2003 T. LaTourrette et al. Protecting Emergency Responders II. vii. 79 One novel concept employs GPS-equipped vehicles parked around an incident scene to act as position beacons for radio location systems.
3. A position as determined by the detection of radio signals, esp. in tracking wild animals.
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1964 Deep Sea Res. & Oceanogr. Abstr. 11 249 An initial exact position is determined by other means and all new radio locations are found relative to this point.
1972 Jrnl. Mammalogy 53 207 Most radio-locations were obtained with portable receiving equipment.
1984 Jrnl. Wildlife Managem. 48 1302 Average distance between successive radiolocations was 0.78 km.
2000 L. H. Emmons Tupai viii. 124 Researchers who take radiolocations only every few hours or days do not know how the animal traveled between points.
This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022).
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n.1926