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
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The rezoning, Oncor representative Ashton Miller said on Tuesday, would allow the company to make improvements to the facility, adding two new transformers and a wall on the north side of the property to abate noise. Emily Holshouser, Fort Worth Star-Telegram, 11 Mar. 2026 During the evening of March 10, an electrical transformer on school grounds caught fire. Alec Johnson, jsonline.com, 11 Mar. 2026 Because of these advantages, amorphous metals have previously been used in specialized electrical components such as transformers, but applying them to automotive traction motors represents a more recent advancement. Prabhat Ranjan Mishra, Interesting Engineering, 9 Mar. 2026 Back on the ground in Atlanta, transformers start to blow, a helicopter falls out of the sky, and the electrical grid is completely down. Maggie Fremont, Vulture, 9 Mar. 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 20 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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