samarium
/səˈmɛriəm/
noun
- A silvery-white metallic chemical element (symbol Sm) used in magnets, lasers, and nuclear reactors.
- Scientists use samarium in certain types of lasers for medical and industrial applications.
- Samarium is an important component in powerful magnets used for electric motors.
- The alloy contains a small amount of samarium to improve its magnetic properties.