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

Hyosung’s high-voltage solid-state transformer uses power semiconductors to control electricity. — Aamir Khollam, Interesting Engineering, 8 Sep. 2026

On Sunday night, a car crashed into a transformer, causing an outage on campus and some surrounding areas for around six hours. — David Ubben, New York Times, 8 Sep. 2026

That's been fueled by relentless demand for Eaton's core Electrical Americas segment, which handles traditional grid-scale power distribution, transformers, and switchgear that often support these data center facilities. — Morgan Chittum, CNBC, 4 Sep. 2026

Howard Industries makes electrical transformers, including the equipment utilities use to get electricity to homes and businesses. — Stephen Sorace, FOXNews.com, 1 Sep. 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