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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In addition to the costs of building more power plants, the report said, utilities will also need to install more substations, transformers and distribution lines. Alex Brown, Baltimore Sun, 15 Apr. 2025 Electrical utilities are sued because their power lines, transformers and other equipment often start blazes. Jay L. Zagorsky, The Conversation, 1 Apr. 2025 The amp section’s high-frequency sinusoidal power supply combines the sonic advantages of transformers with the stability of switching power supplies to deliver 140 WPC. Robert Ross, Robb Report, 26 Mar. 2025 The system uses convolutional neural networks to extract features, and a visual transformer to perform deep evaluations. John Werner, Forbes, 25 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 29 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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