Ununennium
noun ·Rare ·Advanced level
Definitions
- 1 The systematic element name for the (as yet undiscovered) chemical element with atomic number 119 (symbol Uue).
"Element 119: Ununennium (Uue) This has yet to be reported. From its position in the periodic table, in group 1 below francium, this element should have the physical properties of an alkali metal and, were it long-lived enough, the element should display the singly-charged ion M⁺ as its most favoured chemical state."
Example
More examples"Element 119: Ununennium (Uue) This has yet to be reported. From its position in the periodic table, in group 1 below francium, this element should have the physical properties of an alkali metal and, were it long-lived enough, the element should display the singly-charged ion M⁺ as its most favoured chemical state."
Etymology
Systematic element name, from un- + un- + enn- + -ium.
Related phrases
More for "ununennium"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.