transformer

noun

trans·​form·​er tran(t)s-ˈfȯr-mər How to pronounce transformer (audio)
: 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
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As questions mounted over how such a critical part of Britain’s infrastructure could fail and whether all Heathrow’s four terminals needed to shut, both National Grid and Heathrow agreed that the failure of the transformer was an unprecedented event. Reuters, CNN, 24 Mar. 2025 However, large transformer architectures that power generative AI have many downsides, and experts have come to believe that the future of AI actually lies in less complicated tools—AI agents and multi-agent systems. Julius Černiauskas, Forbes, 14 Mar. 2025 Procuring transformers for new electricity substations, upgrading transmission lines, and even acquiring backup generators — which can take up to 90 weeks to procure according to CBRE — have become major obstacles for tech companies building new facilities. Jackie Snow, Quartz, 3 Mar. 2025 Great Noir Thrillers Two of the substation’s transformers were taken offline by the fire. Michael D. Shear, New York Times, 26 Mar. 2025 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 16 Apr. 2025.

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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