Holmium (noun)

1. A metallic chemical element with the symbol Ho and atomic number 67.
2. A rare-earth metal element, it is a silvery white, malleable, and ductile metal that is relatively stable in air, but tarnishes quickly in water.

Origin:

This word is named after the latin name for sweden, holmia, as it was discovered by per theodor cleve in 1879 in the minerals of the rare-earth family from a mine in ytterby in sweden.

Examples:

1. Holmium is used to color glass and ceramics.
2. Holmium is a rare earth element, it is relatively abundant in the earth's crust.
3. Holmium is used in nuclear medicine as a radiation source for cancer therapy.
4. Holmium is a chemical element with symbol Ho and atomic number 67.
5. Holmium has an atomic mass of 164.93032 u and it is a member of the lanthanide series.