transformer

noun

trans·​form·​er tran(t)s-ˈfȯr-mər How to pronounce transformer (audio)
Synonyms of transformernext
: one that transforms
specifically : a device employing the principle of mutual induction to convert variations of current in a primary circuit into variations of voltage and current in a secondary circuit

Examples of transformer in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Power poles were snapped and transformers thrown to the ground. — Victor Jacobo, CBS News, 11 June 2026 Decades of four-year liberal arts grads can't turn a screwdriver to hook up the transformers to the electrical system. — Jim Cramer, CNBC, 28 June 2026 What matters more is whether the new rules turn payment into predictable access, because no tariff helps if the transformer shows up in 2031. — Robert J. Szczerba, Forbes.com, 29 June 2026 The project will replace seals, low side bushings, protective devices and conservator bladders in the transformers. — D. Hunter Reardon, USA Today, 3 June 2026 See All Example Sentences for transformer

Word History

First Known Use

1596, in the meaning defined above

Time Traveler
The first known use of transformer was in 1596

Phrases Containing transformer

Rhymes for transformer

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Browse Nearby Words

transformative
transformer
transformer oil
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Cite this Entry

“Transformer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/transformer. Accessed 7 Jul. 2026.

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Kids Definition

transformer

noun
trans·​form·​er tran(t)s-ˈfȯr-mər How to pronounce transformer (audio)
: a device for changing an electric current into one of different voltage
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