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Showing 1-20 of 145 results in 107 entries
1. acquire, v. View full entry 1953
...trans. Of a sensory device or something containing one: to begin receiving signals from (a source); to locate (and track) (an object or signal, esp. a military target). Orig. Radar...
2. acquisition, n. View full entry 1947
...Chiefly Mil. The initial location of a target or source by radar or other tracking system. Cf. acquire6....
3. active, adj. and n. View full entry 1959
...Of a radar homing system, satellite, etc.: generating as well as receiving signals. Of a satellite, space relay station, etc.: amplifying and retransmitting signals that are received. Opposed to passive9f...
4. afterglow, n. View full entry 1879
...Physics. Light that persists after the cessation of an electric current or radiation that initially gave rise to it; spec. the short-lived persistence of traces on a radar screen...
5. angel, n. View full entry 1947
...An ‘unexplained’ mark on a radar screen....
6. A-scan, n. View full entry 1946
...A radar or ultrasound scan in which the echo signals are used to generate a linear trace on an oscilloscope screen, the height of a peak being proportional to the strength of...
7. auto-follow in auto-, comb. form1 View full entry 1947
... = auto-following(a); = automatic followingautomatic....
8. auto-following in auto-, comb. form1 View full entry 1946
... (esp. of radar) that automatically follows a target; = auto-follow...
9. automatic following in automatic, adj. and n. View full entry 1946
...the automatic following by a radar of a chosen target; = auto-followingauto-2b; freq. attrib....
10. AWACS, n. View full entry 1966
...An airborne long-range radar system for detecting other aircraft, including low-flying ones, and controlling weapons directed against them....
11. B-scan in B, n. View full entry 1947
...a radar or ultrasound scan in which the echo signals are used to modify the brightness of a spot on an oscilloscope screen, so that a two-dimensional cross-sectional image can be built...
12. beep, n. View full entry 1951
...The sound made by a horn on a motor car or other vehicle; a short high-pitched sound such as is emitted by an echo-sounder, a radar device, etc. Also attrib....
13. blip, n.1 View full entry 1945
...A small elongated mark projected on a radar screen....
14. bra, n.1 View full entry 1971
...orig. U.S. Freq. more fully auto bra, car bra, nose bra. A protective cover fitted over the front of a vehicle to guard against...
15. chaff, n.1 View full entry 1945
...Strips of metal foil or similar material released in the atmosphere to interfere with radar detection. orig. U.S....
16. clutter, n. View full entry 1945
...Unwanted images on a radar screen....
17. colidar, n. View full entry 1961
...A form of radar. (Cf. coherent1d.)...
18. diˈsplay, n. View full entry 1945
...The presentation of radar echoes or signals on the screen of a cathode-ray tube; a visual presentation of data from a computer, whether by means of a cathode-ray tube or some other...
19. distant early warning line in distant, adj. View full entry 1955
...a radar system installed in North America for the advance detection of missile attack...
20. duplexer, n. View full entry 1952
...A device by means of which signals are alternately transmitted from and received by a single radar or radio aerial....
