noun
- a rare metallic chemical element of the lanthanide series, used in optical fibers and lasers
Usage: chemistry
Examples
- Erbium is commonly used to amplify light signals in fiber optic communications.
- The scientist studied the properties of erbium in her research lab.
- Erbium-doped fiber amplifiers are essential components in modern telecommunications.
- The periodic table shows erbium with the symbol Er and atomic number 68.
- Erbium compounds often have a pink color in solution.
- The laser contained erbium ions to produce infrared light.