transformer

noun

trans·​form·​er tran(t)s-ˈfȯr-mər 

: 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

Since 2020, inflation for transformers and power regulators has surged the second most of all 47 categories that the Bureau of Labor Statistics measures in its monthly Producer Price Index, a gauge of wholesale inflation. — David Goldman, CNN Money, 6 Aug. 2026

Workers also cleaned up the area, including remaining mineral oil that had spilled from the transformers. — Pioneer Press, Chicago Tribune, 5 Aug. 2026

The company paired that capability with a vision transformer trained on high-resolution satellite imagery. — Aamir Khollam, Interesting Engineering, 5 Aug. 2026

Village officials posted to their social media accounts, instructing residents to stay away from the area around La Grange Road and 31st Street because of a transformer fire. — Sara Tenenbaum, CBS News, 4 Aug. 2026

Word History

First Known Use

1596, in the meaning defined above

Phrases Containing transformer

• Tesla transformer

Rhymes for transformer

• conformer
• informer
• performer
• reformer
• dormer
• former
• warmer

Kids Definition

transformer

noun

trans·​form·​er tran(t)s-ˈfȯr-mər 

: a device for changing an electric current into one of different voltage