Definitions

1. noun

A coil of wire, typically around a tube or core, that generates a magnetic field when an electric current flows through it.

“The solenoid in the microwave oven helps to heat food evenly.”

2. noun

A device that converts an electric signal into a linear motion, often used in actuators and valves.

“The solenoid in the car’s fuel system controls the flow of gasoline to the engine.”