unbiennium

== English == === Etymology === Systematic element name, from un- +‎ bi- +‎ enn- +‎ -ium. === Noun === unbiennium (uncountable) The systematic element name for the (as yet undiscovered) chemical element with atomic number 129 (symbol Ube). ==== Coordinate terms ==== Previous: unbioctium Ubo; Next: untrinilium Utn ==== Translations ==== == Swedish == === Noun === unbiennium n unbiennium ==== Declension ==== ==== Coordinate terms ==== Previous: unbioktium Next: untrinilium