Meaning oftransformerin English

Noun

1. a static device transferring electric energy between circuits
   The engineer designed a transformer to step up the voltage.
2. a device transferring electric energy between circuits by magnetic coupling; used for voltage conversion
   The company manufactured a transformer to increase the voltage for industrial use.
3. a toy with mechanical parts changing appearance
   A popular toy transformer can change from a car to a robot.
4. a robot character transforming into various forms
   In the movie, the robot transformer fought against evil forces.
5. a device changing shape or form; altering itself
   The new device is a shape-memory alloy transformer that can alter its form.