You know what it looks like… but what is it called?
TAKE THE QUIZ“van de graaff”
We have one entry that includes the term van de graaff.
Van de Graaff generator
noun: an apparatus for the production of electrical discharges at high voltage commonly consisting of an insulated hollow conducting sphere that accumulates in its interior the charge continuously conveyed from a source of direct current by an endless belt of flexible nonconducting material
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Merriam-Webster unabridged
