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Detector   /dɪtˈɛktər/   Listen
Detector

noun
1.
Any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner.  Synonyms: sensing element, sensor.
2.
Rectifier that extracts modulation from a radio carrier wave.  Synonym: demodulator.
3.
Electronic equipment that detects the presence of radio signals or radioactivity.



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"Detector" Quotes from Famous Books



... doe, squirrel, camel bird, chickaree[obs3], chipmunk, hackee [obs3][U.S.], ostrich, scorcher*. Mercury, Ariel[obs3], Camilla[obs3], Harlequin. [Measurement of velocity] log, log line; speedometer, odometer, tachometer, strobe, radar speed detector, radar trap, air speed gauge, wind sock, wind speed meter; pedometer. V. move quickly, trip, fisk|; speed, hie, hasten, post, spank, scuttle; scud, scuddle[obs3]; scour, scour the plain; scamper; run like mad, beat it; fly, race, run a race, cut away, shot, tear, whisk, zoom, swoosh, sweep, skim, ...
— Roget's Thesaurus

... his voice and emotion under control, Professor Sims called his laboratory at the University and ordered among other technical equipment, a Geiger counter, a gamma-ray detector, a portable lead shield, body and temperature thermometers, a portable X-ray machine, and a ...
— The Shining Cow • Alex James

... work, the equipment was ready. Tom conferred by telephone with both Dr. Miles in the Bureau of Mines and Bernt Ahlgren in the Pentagon. He had already chosen the spots for the detector-transmitter check points. ...
— Tom Swift and The Visitor from Planet X • Victor Appleton

... undoubted authority, that Johnson was one of those by whom the imposture was detected. The story had become so popular, that he thought it should be investigated[1194]; and in this research he was assisted by the Reverend Dr. Douglas[1195], now Bishop of Salisbury, the great detector of impostures; who informs me, that after the gentlemen who went and examined into the evidence were satisfied of its falsity, Johnson wrote in their presence an account of it, which was published in the newspapers and Gentleman's Magazine, ...
— Life Of Johnson, Vol. 1 • Boswell

... understand their reports. However, I know two things. First, they'll get it in time. Second, we BuSci people will stay here until they do. However, I'm still hopeful of finding a shortcut through Laro. Anyway, with this detector thing settled, you'll have plenty to do to keep all your boys out of mischief for the next ...
— Masters of Space • Edward Elmer Smith

... that any one of you can find about the house, such as tinfoil, curtain poles, curtain rings, wood for the box, and so on. The wire needed for your tuning coil and your aerial can be obtained for less than a dollar. The detector, including the crystal, can be got for another dollar. An excellent receiver can be bought for two dollars. A few minor things will be needed at perhaps five or ten cents each. Altogether the cost of the set can be brought within ...
— The Radio Boys' First Wireless - Or Winning the Ferberton Prize • Allen Chapman

... assembled and the connections made, the first essential operation, if they were to make use of the invention at once, was to adjust the tiny piece of wire—the "cat's whisker"—which lightly rests on the crystal-detector, to ...
— The Campfire Girls of Roselawn - A Strange Message from the Air • Margaret Penrose

... He had a proximity detector out, which would pick up any radiation caused by the cutting of magnetic lines of force by any object. It made very tiny whining noises from time to time. If anything from a Huk missile rocket to the salvage ship Aldeb approached, however, ...
— A Matter of Importance • William Fitzgerald Jenkins

... collateral points of evidence which strongly confirm Maria Monk's direct statements. One is derived from the very character of the acknowledgments which she made, and the period when they were first disclosed. "A death-bed," says the Poet, "is a detector of the heart." Now it is certain, that the appalling facts which she states, were not primarily made in a season of hilarity, or with any design to "make money" by them, or with any expectation that they would be known to any other person than Mr. Hilliker, Mr. Tappan, and ...
— Awful Disclosures - Containing, Also, Many Incidents Never before Published • Maria Monk



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