step-down

step-down

[step-doun]
adjective Electricity.
serving to reduce or decrease voltage: a step-down transformer.

Origin:
1890–95; adj. use of verb phrase step down

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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WordNet
step-down

noun
the act of decreasing or reducing something [syn: decrease] [ant: increase
WordNet® 3.0, © 2006 by Princeton University.
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00:10
Step-down is always a great word to know.
So is ninnyhammer. Does it mean:
a fool or simpleton; ninny.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
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