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.
As a result, the cost of some electrical equipment like transformers has risen faster than the rate of inflation, Hledik said. Ella Nilsen, CNN Money, 4 Dec. 2025 Like other area data centers, Segra has its own transformer. Charlotte Observer, 3 Dec. 2025 Processing is handled by an onboard NVIDIA Jetson module running real-time transformer models for perception and planning. Jijo Malayil, Interesting Engineering, 26 Nov. 2025 Even smaller transformers used to reduce voltage for distribution to homes and businesses are back-ordered as much as two years. Kyri Baker, The Conversation, 14 Nov. 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 13 Dec. 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
Last Updated: - Updated example sentences
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