The ability of certain materials to carry an electric current with zero electrical resistance.
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http://antoine.frostburg.edu/chem/senese/101/glossary/s.shtml
Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature. It was discovered by Dutch physicist Heike Kamerlingh Onnes on April 8, 1911 in Leiden. Like ferromagnetism and atomic spectral lines, superconductivity is ...
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http://en.wikipedia.org/wiki/Superconductivity
complete disappearance of electrical resistance in various solids when they are cooled below a characteristic temperature. This temperature, called ... [28 related articles]
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http://www.britannica.com/eb/a-z/s/187
A state in which the electrical resistance of a material is so low that it cannot be measured and appears to be zero.The superconducting state is also characterized by unusual magnetic properties.
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http://www.chemicalglossary.net/definition/1515-Superconductivity
The abrupt and large increase in electrical conductivity exhibited by some metals as the temperature approaches absolute zero.
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http://www.daviddarling.info/encyclopedia/S/AE_superconductivity.html
A phenomenon that occurs in many metals, alloys, and other substances, at low temperatures, involving zero electrical resistance and perfect diamagnetism. In a superconducting material an electric current will persist indefinitely without any driving voltage and applied magnetic fields are exactly c...
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http://www.daviddarling.info/encyclopedia/S/superconductivity.html
The abrupt and large increase in electrical conductivity exhibited by some metals as the temperature approaches absolute zero.
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http://www.electromn.com/glossary/s.htm
property of materials regarded as having zero direct electric current resistivity and perfect diamagnetism under appropriate conditions NOTE - Appropriate conditions apply to temperature, magnetic field strength and electric current density.
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http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=815-01-02
The abrupt and large increase in electrical conductivity exhibited by some metals as the temperature approaches absolute zero.
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http://www.encyclo.co.uk/local/21690
A phenomenon occurring below a very low, characteristic critical temperature in certain materials (superconductors), characterised by the complete absence of electrical resistance and the damping of the interior magnetic field (the Meissner effect ). Superconductors can carry currents that will not decay.
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http://www.mpoweruk.com/glossary.htm
[
n] - the disappearance of electrical resistance at very low temperatures
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http://www.webdictionary.co.uk/definition.php?query=superconductivity
superconductivity A phenomenon shown by certain metals, alloys, and other compounds of having negligible resistance to the flow of electric current at temperatures approaching absolute zero. Certain materials are now known to exhibit superconductivity at temperatures well above absolute zero.
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http://www.wordinfo.info/words/index/info/view_unit/2069/5
The phenomena by which, at sufficiently low temperatures, a conductor can conduct charge with zero resistance. The current theory for explaining superconductivity is the BCS theory. Named after J. Bardeen, L.N. Cooper and J.R. Schrieffer.A theory put forth to explain both superconductivity and superfluidity. It suggests that in the superconducting ...
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https://www.encyclo.co.uk/local/20687
noun the disappearance of electrical resistance at very low temperatures
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https://www.encyclo.co.uk/local/20974
Increase in electrical conductivity at low temperatures. The resistance of some metals and metallic compounds decreases uniformly with decreasing temperature until at a critical temperature (the superconducting point) the resistance suddenly falls to zero. The phenomenon was discovered, at temperatures within a few degrees of absolute zero (0 K/......
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https://www.encyclo.co.uk/local/21221
The abrupt and large increase in electrical conductivity exhibited by some metals as the temperature approaches absolute zero.
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https://www.encyclo.co.uk/local/22819
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