What does "meitnerium" mean?

A transuranic chemical element (symbol Mt) with atomic number 109.

What is a synonym for "meitnerium"?

Common synonyms include: atomic number 109, eka iridium, eka-iridium, element 109, mt, unnilennium.

Pronounced //maɪtˈnɪəɹi.əm//.

//maɪtˈnɪəɹi.əm// noun

noun ·Rare ·Advanced level

Noun

1
A transuranic chemical element (symbol Mt) with atomic number 109. uncountable
2
a radioactive transuranic element, with atomic number 109 wordnet

"Meitnerium is a radioactive transition metal with element symbol Mt and atomic number 109."

From Meitner + -ium; named for Lise Meitner.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.