Unnilennium

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    meitnerium. dated, uncountable

Synonyms

All synonyms
eka iridiummeitneriummeitnerium

Etymology

Systematic name, literally "element 109".

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