magnetic levitation

American  

noun

1. the suspension of an object above or below a second object by means of magnetic repulsion or attraction.

2. Railroads.  the suspension of a vehicle above or below a suitable guide rail by such means, often with the vehicle being propelled by a linear induction motor.

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magnetic levitation Cultural  

1. A process by which a magnet moving over a piece of metal causes electric currents (see also current) to flow in the metal that, in turn, produce forces that push the magnet upward. If the force is large enough, the moving magnet can float (be levitated).

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Magnetic levitation (or maglev) trains are capable of cruising speeds of up to three hundred miles per hour.

Example Sentences

Superconductors are materials that can conduct electricity without electrical resistance -- making them the ideal base material for electronic components in MRI machines, magnetic levitation trains and even particle accelerators.

From Science Daily

Additionally, observes Scientific American, superconductors repel magnetic fields, which could lead to more efficient magnetic levitation, or maglev, trains.

From Los Angeles Times

Some of the most exciting and promising clean tech — like magnetic levitation trains and other low-cost, high-speed transportation — could finally be viable for mass development with superconductor use.

From Salon

We use magnetic levitation technology, so there is no grinding, and everything is contactless and smooth.

From Reuters

A maglev, or magnetic levitation, uses the repulsive force of magnets to create a frictionless surface on which a train can travel.

From Washington Times