noun
- Plural of lutetium; atoms or samples of the chemical element lutetium (atomic number 71), a rare-earth metal.
Usage: chemistry; technical
Examples
- Lutetiums are among the rarest of the rare-earth elements found in Earth's crust.
- The laboratory stored several lutetiums in sealed containers to prevent oxidation.
- Scientists studied the properties of lutetiums in their research on lanthanide compounds.
- Lutetiums have applications in nuclear medicine and high-refractive-index optical materials.