Noun
Van de Graaff generator (plural Van de Graaff generators)
(physics) A device in which an electric charge is built up on a large spherical electrode by means of a rapidly moving belt.
Synonym: (ellipsis) Van de Graaff
A Van de Graaff generator terminal does not need to be sphere-shaped to work, and in fact, the optimum shape is a sphere with an inward curve around the hole where the belt enters. Source: Internet
In the Van de Graaff generator, the belt allows the transport of charge into the interior of a large hollow spherical electrode. Source: Internet
It consisted of a tandem Van de Graaff generator operating routinely at 20 MV, housed in a distinctive building 70 metres high. Source: Internet
The chain can be operated at much higher velocity than a belt, and both the voltage and currents attainable are much higher than with a conventional Van de Graaff generator. Source: Internet