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Van de Graaff generator

[ van duh graf jen-uh-rey-ter ]

noun

, Physics, Electricity.
  1. a device for producing high-voltage static electricity.


Van de Graaff generator

/ ˈvæn də ˌɡrɑːf /

noun

  1. a device for producing high electrostatic potentials (up to 15 million volts), consisting of a hollow metal sphere on which a charge is accumulated from a continuous moving belt of insulating material: used in particle accelerators
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Van de Graaff generator

  1. A type of electrostatic generator used to build up static electrical charge of very high voltages by transferring electric charge from a power supply to a spherical metal terminal. A high-voltage source transfers charge to a nonconducting conveyor belt, usually made of silk or rubber, which continuously redeposits the charge on the insulated metal terminal, where it accumulates. Even small Van de Graaff generators can accumulate a static charge of 100,000 volts; the largest, up to 10 million volts.
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Word History and Origins

Origin of Van de Graaff generator1

1935–40; named after R. J. Van de Graaff (1901–66), American physicist
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Word History and Origins

Origin of Van de Graaff generator1

C20: named after R. J. Van de Graaff (1901–67), US physicist
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Example Sentences

The contraption was a huge Van de Graaff generator of the sort you can see throwing off sparks and raising hair at science museums.

Juliet did try to Van de Graaff generator, which is a silver sphere that generates static electricity.

In the display, the scale model of the 65-foot Van de Graaff generator looks as it did when it began operations in 1937.

Rabkin rattled off a few in particular including their Van de Graaff generator, which incidentally is vividly seared into this Boston-raised science writer’s childhood memories.

Perception problems ... a student touches a Van de Graaff generator.

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Van de GraaffVandemonian