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.
The leap from early desktop computing to the smartphone to the transformer architecture was enormous in terms of information flow. Nicole Fraenkel, Fortune, 6 Mar. 2026 Center for Strategic & International Studies’ deputy director of the Energy Security and Climate Change Program, Leslie Abrahams, said, for instance, that the tariffs will make key grid components such as inverters and transformers more expensive just as electricity demand is projected to increase. Chaewon Chung march 5, Sacbee.com, 5 Mar. 2026 Lodestar said in the Connecticut Siting Council’s report that noise emissions from the facility would be during daytime operations from the 20 inverters and two transformers. Sean Krofssik, Hartford Courant, 2 Mar. 2026 The start of service has been delayed multiple times for a variety of reasons, but the transformers appear to be the final hurdle. Doug Ross, Chicago Tribune, 28 Feb. 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

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Cite this Entry

“Transformer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/transformer. Accessed 9 Mar. 2026.

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
Last Updated: - Updated example sentences
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