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step-down

[ step-doun ]
/ ˈstɛpˌdaʊn /
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adjective Electricity.

serving to reduce or decrease voltage: a step-down transformer.

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Origin of step-down

First recorded in 1890–95; adj. use of verb phrase step down
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for step-down

step down

verb (adverb)

(tr) to reduce gradually
(intr) informal to resign or abdicate (from a position)
(intr) informal to assume an inferior or less senior position

adjective step-down (prenominal)

(of a transformer) reducing a high voltage applied to the primary winding to a lower voltage on the secondary windingCompare step up
decreasing or falling by stages

noun step-down

informal a decrease in quantity or size
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

Idioms and Phrases with step-down

step down

1

Resign from office, as in He threatened to step down if they continued to argue with him. [Late 1800s]

2

Reduce, especially in stages, as in They were stepping down the voltage. [c. 1900] Also see step up, def. 1.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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