Metal Definition–noun | 1. | any of a class of elementary substances, as gold, silver, or copper, all of which are crystalline when solid and many of which are characterized by opacity, ductility, conductivity, and a unique luster when freshly fractured. | | 2. | Chemistry. | a. | such a substance in its pure state, as distinguished from alloys. | | b. | an element yielding positively charged ions in aqueous solutions of its salts. | | | 3. | an alloy or mixture compose
cce
d wholly or partly of such substances, as brass. | | 4. | an object made of metal. | | 5. | formative material; stuff. | | 7. | Printing. | b. | the state of being set in type. | | | 8. | molten glass in the pot or melting tank. | –verb (used with object) | 10. | to furnish or cover with metal. | | 11. | British. to pave or surface (a road) with broken stone. | |
From Dictionary
Detector Definition–noun | 1. | a person or thing that detects. | | 2. | a device for detecting smoke, fire, or some other hazardous condition. | | 3. | a device for detecting the presence of metal, contraband, or other items that might be hidden or concealed. | | 4. | Telecommunications. | a. | a device for detecting electric oscillations or waves. | | b. | a device, as a crystal detector or a vacuum tube, that rectifies the alternating current in a radio receiver. | | |
From Dictionary
Related topics from Britannicaspectroscopy
The principal detection methods used in optical spectroscopy are photographic (e.g., film), photoemissive (photomultipliers), and photoconductive (semiconductor). Prior to about 1940, most spectra ...
Military Affairs
Australian scientists developed a handheld land mine detector; it combined a ground-probing radar and a conventional metal detector that could detect both metal and plastic mines.Vatican City State
High on the agenda of the Vatican in 2004 was peace in an increasingly interrelated world. Pope John Paul II spoke out repeatedly against war and unilateral action by individual countries and in ...
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As the U.S. Supreme Court worked its way through challenges based on separation of church and state, support for additional competition in elementary and secondary schools mounted during 1999. The ...
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The head of the National Science Foundation (NSF) for most of 2004 was Arden Bement, a metallurgical engineer and science administrator whose career included successful stints in academia, ...
Anthropology and Archaeology
In January 2007 David Whelan and his son Andrew retrieved what was hailed as the largest and most important Viking hoard found in Britain in 150 years. They found the treasure as they used metal ...
Anthropology and Archaeology
The year 2004 witnessed many exciting discoveries throughout the Old World.Anthropology and Archaeology
The year 2002 yielded a number of stunning archaeological discoveries. A 50-cm (20-in)-long limestone ossuary, or box for storage of bones, bearing a text in Aramaic, was hailed as the first ...
nitrogen group element
High-grade or enriched stibnite reacts directly with scrap iron in the molten state, liberating antimony metal. The metal can also be obtained by conversion of stibnite to the oxide, followed by ...
radiometer
instrument for detecting or measuring radiant energy. The term is applied in particular to devices used to measure infrared radiation. Radiometers are of various types that differ in their method of ...
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Related topics from Ask NewsMaking of coil coupled operation metal detector
EFY - Found Nov. 14, 2008
Operation Metal Detector made from readily obtainable components and using an ordinary medium receiver as a detector. Notes: The metal detector...
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Ancient Celtic coin cache found in Netherlands
A story of the treasure seekers
Professor Hex - Found Nov. 12, 2008
“We are lucky in this country that we have got thousands of years of people dropping things,” smiles metal detector enthusiast Tim Kennett, as
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Flying? Get ready for Thanksgiving airport crush
USA Today - Found Nov. 11, 2008
... it's the same every year." GNS looked at how long it took travelers to make their way through the line to get to an airport metal detector.
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Confiscations illustrate need for courthouse metal detector: Crown ...
Metronews - Found Nov. 10, 2008
LINDSAY JONES, METRO HALIFAX Dozens of knives and razor blades that come through the Halifax courthouse show a permanent metal detector is needed,
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Confiscations illustrate need for courthouse metal detector:...
Metronews - Found Nov. 9, 2008
LINDSAY JONES, METRO HALIFAX Dozens of knives and razor blades that come through the Halifax courthouse show a permanent metal detector is needed,
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Case Study: Pork Processor Relies On X-Ray Inspection And Metal ...
Meat and Poultry Online - Found Nov. 6, 2008
... they installed a PowerChekPlus x-ray inspection system on their processing line and a PowerPhasePLUS metal detector on their packaging line...
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Metal Detectors For City Chambers?
KELOLAND TV - Found Nov. 14, 2008
... attends every meeting, but some wonder if a metal detector is the next step. 'Airports, courthouses and many public venues, metal detectors are...
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Metal detector, CCTV cameras at Udupi CMC office
SahiOnline - Found Oct. 27, 2008
... intelligence reports, the metal detector had been installed by the CMC. The CMC has spent Rs. 45,000 on the installation of the metal detector.
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Metal detector find declared 'treasure'
Hartlepool Mail - Found Nov. 6, 2008
A MEDIEVAL decoration unearthed by a metal detector enthusiast could end up in a museum after is was labelled as being treasure.
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