trans·​form·​er | \tran(t)s-ˈfȯr-mər \

Definition of transformer 

: 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

There was only a vast sea of debris: wooden beams filled with nails, shattered toilets and glass, concrete rubble, uprooted trees, twisted power transformers. Todd Pitman, Fox News, "AP WAS THERE: 2013 typhoon kills thousands in Philippines," 15 Sep. 2018 Duke Energy spokeswoman Sally Thelen said a transformer failed. Cameron Knight,, "Power outage hit 2,300 in Norwood, Bond Hill," 2 July 2018 Ayton, almost a month away from his 20th birthday, startles as a 7-foot, 260-pound transformer with a 7-5 wingspan who shoots, passes, dribbles, runs, slides and jumps like a wing with a post game. Paul Coro,, "Potential No. 1 draft pick Deandre Ayton says he and Devin Booker could be "Shaq and Kobe 2.0" for Phoenix Suns," 18 June 2018 The six-day shutdown started after a warning from transformers. Seattle Times Staff, The Seattle Times, "Nuclear power plant near Tri-Cities is back online," 25 May 2018 Again, the name gives it away — sparkles on sparkles, which can be worn solo or as a transformer for matte shades. Macaela Mackenzie, Allure, "Smashbox Teamed Up with Influencer Jasmine Sanders to Launch 7 New Mini Eye Palettes," 11 July 2018 The driver tried to turn left onto Kelso Drive, but struck a BGE transformer, a light pole and a traffic signal box at the intersection of Kelso Drive and Rossville Boulevard, police said. Sarah Meehan,, "Suspect crashes stolen car into power transformer after police chase in Baltimore County, police say," 29 June 2018 The effects of that short circuit traveled nearly instantly to a transformer station near Robinson Street and Interstate 4. Kevin Spear,, "Orlando downtown power outage for thousands: initially a mystery and now explained," 28 June 2018 In Canada, a key piece of equipment at the Syncrude oil-sands complex in Alberta halted operations last week after a transformer blast shut the entire 350,000 barrel-a-day facility. Jessica Summers,, "Oil Climbs as Huge U.S. Supply Draw Seen Adding to Global Risks," 26 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'transformer.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of transformer

1596, in the meaning defined above

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Statistics for transformer

Last Updated

28 Nov 2018

Look-up Popularity

Time Traveler for transformer

The first known use of transformer was in 1596

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More Definitions for transformer



English Language Learners Definition of transformer

: a device that changes the voltage of an electric current


trans·​form·​er | \trans-ˈfȯr-mər \

Kids Definition of transformer

: a device for changing the voltage of an electric current

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More from Merriam-Webster on transformer

Rhyming Dictionary: Words that rhyme with transformer

Spanish Central: Translation of transformer

Nglish: Translation of transformer for Spanish Speakers

Britannica English: Translation of transformer for Arabic Speakers Encyclopedia article about transformer

Comments on transformer

What made you want to look up transformer? Please tell us where you read or heard it (including the quote, if possible).


to move with a clumsy heavy tread

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