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.
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 Their profits come from building new power plants, new transformers and substations, and new power lines – and passing those costs along to customers, with a markup for profit. — Lauren Mullenbach, The Conversation, 1 July 2026 Beyond selling Prolec transformers for grid connectivity, the company is designing more advanced solutions to keep pace with the evolving industry. — Morgan Chittum, CNBC, 2 July 2026 Located in Noventa di Piave near Venice, the modernized facility tests high-voltage equipment such as transformers and disconnectors before they are deployed on power grids. — Neetika Walter, Interesting Engineering, 3 July 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 10 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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