step-down

[ 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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