noun
- a rare metallic chemical element with the symbol Ho and atomic number 67, belonging to the lanthanide series
Usage: chemistry
Examples
- Holmium is one of the rarest of the rare earth elements.
- The scientist studied the magnetic properties of holmium compounds.
- Holmium has the highest magnetic permeability of any element.
- Pure holmium metal has a bright silvery luster.
- Holmium oxide is used in some specialized glass applications.
- The periodic table shows holmium in the lanthanide series.