a bar-shaped, usually permanent, magnet.
Origin of bar magnet
First recorded in 1820–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for bar magnet
Historical Examples of bar magnet
He hung a bar-magnet on a pivot in its center as a compass-needle is hung.Steam Steel and Electricity
James W. Steele