noun
- a synthetic radioactive chemical element with the symbol Mt and atomic number 109
Usage: chemistry
Examples
- Meitnerium is one of the heaviest known elements.
- Scientists first synthesized meitnerium in 1982.
- The element meitnerium was named after physicist Lise Meitner.
- Meitnerium has a very short half-life and decays quickly.
- Only a few atoms of meitnerium have ever been produced.
- Meitnerium belongs to the group of superheavy elements.