varistor

noun
va·ris·tor | \ va-ˈris-tər , ve- \

Definition of varistor 

: an electrical resistor whose resistance depends on the applied voltage

First Known Use of varistor

1937, in the meaning defined above

History and Etymology for varistor

vari- + resi(stor)

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The first known use of varistor was in 1937

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