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

The same benefits of solid-state transformers also apply to electric vehicle charging’s similar reliance on DC power. — Jeremy Hsu, ArsTechnica, 24 Aug. 2026

Pipeline companies may benefit from additional natural-gas demand, while manufacturers of turbines, transformers, switchgear, cooling equipment, and electrical components are seeing a new source of orders. — Robert Rapier, Forbes.com, 23 Aug. 2026

Witnesses in East Chicago believe an electrical utility pole went up in flames following a possible transformer explosion. — Lauren Victory, CBS News, 18 Aug. 2026

Power lines, transformers, electric motors, charging stations, renewable-energy projects and data centers all need it. — Atharva Gosavi, Interesting Engineering, 18 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