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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This enables smaller transformers and resonant parts, further reducing overall system size and resource requirements. Georgina Jedikovska, Interesting Engineering, 20 Mar. 2026 Copper is an essential material that is used in generating and distributing electrical power; cables, wires, motor windings, transformers and cooling equipment in data centers; and advanced manufacturing of consumer and defense products. Adam Charles Simon, The Conversation, 19 Mar. 2026 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 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 24 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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