| / English Dictionary |
DETECTOR
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
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:
detector; sensing element; sensor
Classified under:
Nouns denoting man-made objects
Hypernyms ("detector" is a kind of...):
device (an instrumentality invented for a particular purpose)
Hyponyms (each of the following is a kind of "detector"):
metal detector (detector 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 metal)
mine detector (detector consisting of an electromagnetic device; used to locate explosive mines)
electric eye; magic eye; photocell; photoconductive cell; photoelectric cell (a transducer used to detect and measure light and other radiations)
trace detector (a screening device for traces of explosives; used at airline terminals)
Derivation:
detect (discover or determine the existence, presence, or fact of)
Sense 2
Meaning:
Electronic equipment that detects the presence of radio signals or radioactivity
Classified under:
Nouns denoting man-made objects
Hypernyms ("detector" is a kind of...):
electronic equipment (equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor))
Hyponyms (each of the following is a kind of "detector"):
crystal detector (a detector consisting of a fine wire in contact with a galena crystal; acts as a rectifier)
electronic scanner; scanner (a radio receiver that moves automatically across some selected range of frequencies looking for some signal or condition)
Holonyms ("detector" is a part of...):
radio; radio receiver; radio set; receiving set; tuner; wireless (an electronic receiver that detects and demodulates and amplifies transmitted signals)
Derivation:
detect (discover or determine the existence, presence, or fact of)
Sense 3
Meaning:
Rectifier that extracts modulation from a radio carrier wave
Synonyms:
demodulator; detector
Classified under:
Nouns denoting man-made objects
Hypernyms ("detector" is a kind of...):
rectifier (electrical device that transforms alternating into direct current)
Holonyms ("detector" is a part of...):
radio; radio receiver; radio set; receiving set; tuner; wireless (an electronic receiver that detects and demodulates and amplifies transmitted signals)
Context examples:
The detection by the LIGO Scientific Collaboration (LSC) and the Virgo collaboration is the first confirmed gravitational wave signal recorded by the Virgo detector.
(LIGO and Virgo observatories jointly detect black hole collision, National Science Foundation)
The distance along the body axis which can be imaged at one bed position by the scanner's detector geometry.
(Axial Field of View, NCI Thesaurus)
This observational technique was first proposed by the visionary English scientist John Michell in 1783, but it has only become feasible with recent technological improvements in telescopes and detectors.
(Unpredicted stellar black hole discovered by astronomers, The Titi Tudorancea Bulletin)
To find out, an international team researchers developed an X-ray detector that could distinguish between the two possibilities.
(Evidence for supernovas near Earth, NASA)
By measuring the light patterns from these interactions in or near the detector array, IceCube can estimate the neutrinos' directions and energies.
(Antarctic detector offers first look at how Earth stops high-energy neutrinos in their tracks, National Science Foundation)
These waves will have lower frequencies than the National Science Foundation's Laser Interferometer Gravitational-Wave Observatory (LIGO) and European Virgo gravitational-wave detector can detect.
(Three Black Holes on Collision Course, NASA)
A type of spiral computed tomography that employs multiple rows of detectors, each capable of producing a simultaneous image (slice).
(Multi-slice Spiral Computed Tomography, NCI Thesaurus)
A dedicated PET scanner with a small diameter ring of detectors that bring these close to small animal subjects.
(MicroPET, NCI Thesaurus)
Calcium sulfide is used as pigment in paints, plastics, textiles, ceramic and glass and is also used in solar cells, smoke and radiation detectors, light-emitting diodes and photomultipliers.
(Cadmium Sulfide, NCI Thesaurus)
Detectors in Europe picked up the waves and experts realised this would be impossible if the core was liquid, as it was thought to be in the 19th and early 20th centuries.
(Earth's Core Confirmed to Be Solid After 80 Years of Study, The Titi Tudorancea Bulletin)
YOU MAY ALSO LIKE
