detector
Other forms: detectors
A detector is a machine that responds to particular substances in a consistent way. Everyone who flies on an airplane must pass through a metal detector, which beeps when it senses metal.
A "lie detector" works by measuring pulse and eye movements as a person responds to a series of questions. A radioactivity detector looks for high levels of radioactivity in nuclear power plants. Since the invention of detectors, the idea of more fantastical detectors has filled the human imagination. A love detector: why not?
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any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive mannersynonyms: sensing element, sensortypes:metal detectordetector that gives a signal when it detects the presence of metal; used to detect the presence of stray bits of metal in food products or to find buried metalmine detectordetector consisting of an electromagnetic device; used to locate explosive mineselectric eye, magic eye, photocell, photoconductive cell, photoelectric cella transducer used to detect and measure light and other radiationstrace detectora screening device for traces of explosives; used at airline terminalsselenium cella photoelectric cell that uses a strip of seleniumtype of:devicean instrumentality invented for a particular purpose
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electronic equipment that detects the presence of radio signals or radioactivitytypes:crystal detectora detector consisting of a fine wire in contact with a galena crystal; acts as a rectifierelectronic scanner, scannera radio receiver that moves automatically across some selected range of frequencies looking for some signal or conditiontype of:electronic equipment, electronicsequipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor)
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rectifier that extracts modulation from a radio carrier wavesynonyms: demodulatortype of:rectifierelectrical device that transforms alternating into direct current
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Vocabulary lists containing detector
Author Paul Fleischman coined the term seedfolks to describe ordinary people whose lives are connected by a community garden.
Learn these words from the magazine article by Terrell Smith (Inside: Level B, Unit 6). Here are our links to the selections of "To the Rescue": Dogs at Work, How to Train a Guide Dog; The Wonder Dog, Angels in the Snow, Zlateh the Goat, The Story of Mzee and Owen, A Conflict Close to Home Here are our links to the units of Level B: Unit 1, Unit 2, Unit 3, Unit 4, Unit 5, Unit 6, Unit 7, Unit 8 Here are our links to the Inside books: Level A, Level B, Level C Here is our link to a list of academic vocabulary for Inside: Academic Vocabulary
With help from Roman demigods, Annabeth must use her wits to retrieve the stolen statue of Athena. Now test your wits against these words from Rick Riordan.