The Collaborative International Dictionary
Step-down
Step-down \Step"-down`\, a. (Elec.) Transforming or converting a current of high potential or voltage into one of low voltage; as, a step-down transformer.
Wiktionary
step-down
a. 1 That decreases in stages 2 (context of a transformer etc English) That reduces a voltage
WordNet
step-down
n. the act of decreasing or reducing something [syn: decrease, diminution, reduction] [ant: increase]
Usage examples of "step-down".
You adjust the speed to match your subjective time rate, or a little faster, and use an audio frequency step-down to let you hear what is being said.
A step-down conversation pit increased the size of the glass wall, magnified the view.