solenoid

Definition

A coil of wire that becomes magnetic when electricity flows through it, basically the electromagnetic equivalent of Dr. Jekyll and Mr. Hyde. Engineers love these because they turn electrical signals into physical movement, making them perfect for everything from car starters to doorbell mechanisms. The unsung hero of electromechanical switches everywhere.

Example Usage

When the solenoid failed, the engineer explained it had 'lost its magnetic personality' before ordering a replacement.

Source: Wiktionary via Free Dictionary API

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