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[step-doun] /ˈstɛpˌdaʊn/
adjective, Electricity.
serving to reduce or decrease voltage:
a step-down transformer.
Origin of step-down
First recorded in 1890-95; adj. use of verb phrase step down Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for step-down
Historical Examples
  • The former is called "step-up" while the latter is a "step-down" transformer.

    Physics Willis Eugene Tower
  • When the current reaches those places where it is to be used a low voltage is again obtained by the step-down transformer.

    The Niagara River Archer Butler Hulbert
  • If the pressure or voltage of the secondary coil is less than that of the primary, we have a "step-down" transformer.

    The Story of Great Inventions Elmer Ellsworth Burns
  • When used on modern supply circuits of 220 volts a number of lamps may be run in series, or a step-down transformer employed.

  • For accurate results a step-down voltmeter transformer should be used on the testing circuit.

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