lutecium
/luːˈtiːʃiəm/
noun
- A rare, silvery-white metallic chemical element (symbol Lu) used in some specialized industrial and medical applications.
- Scientists use lutecium in certain types of catalysts and phosphors.
- Lutecium is one of the least abundant elements in the Earth's crust.
- The medical imaging technique used a radioactive isotope of lutecium.