Meanings
- dateduncountableThe systematic element name for the chemical element with atomic number 113 (symbol Uut). The element is now named nihonium.
1 more example
“The chemistry community is eager to see its most cherished table finally being completed down to the seventh row. IUPAC has now initiated the process of formalizing names and symbols for these elements temporarily named as ununtrium, (Uut or element 113), ununpentium (Uup, element 115), ununseptium (Uus, element 117), and ununoctium (Uuo, element 118)” said Professor Jan Reedijk, President of the Inorganic Chemistry Division of IUPAC.
2015 December 30, “Discovery and Assignment of Elements with Atomic Numbers 113, 115, 117 and 118”, in IUPACSynonyms: eka-thallium, nihonium, mul:Uut, mul:Nh
Synonyms & antonyms
nounThe systematic element name for the chemical element with atomic number 113 (symbol Uut). The element is now named nihonium.
More synonyms by meaning
nouna radioactive transuranic element, with atomic number 113
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
Systematic element name, from un- + un- + tri- + -ium.
Full word history & related roots →Translations
Arabic أُنُون تْرِيُّوم
- أُنُون تْرِيُّوم (ʔunun triyyum)chemical element
Catalan ununtri
- ununtrichemical element
Dutch ununtrium
- ununtriumchemical element
Esperanto ununtrio
- ununtriochemical element
Estonian ununtrium
- ununtriumchemical element
Finnish ununtrium
- ununtriumchemical element
French ununtrium
- ununtriumchemical element
German Ununtrium
- Ununtriumchemical element
Greek ουνούντριο
- ουνούντριο (ounoúntrio)chemical element
Hungarian ununtrium
- ununtriumchemical element
Italian ununtrio
- ununtriochemical element
Japanese ウンウントリウム
- ウンウントリウム (un'untoriumu)chemical element
Korean 우눈트륨
- 우눈트륨 (ununteuryum)chemical element
Malay ununtrium
- ununtriumchemical element
Norwegian ununtrium
- ununtriumchemical element
Polish ununtrium
- ununtriumchemical element
Portuguese ununtrio
- ununtriochemical element
Romanian ununtriu
- ununtriuchemical element
Russian уну́нтрий
- уну́нтрий (unúntrij)chemical element
Spanish ununtrio
- ununtriochemical element
Swedish ununtrium
- ununtriumchemical element
Tamil யுனண்ட்ரியம்
- யுனண்ட்ரியம் (yuṉaṇṭriyam)chemical element
Thai อูนอูนเทรียม
- อูนอูนเทรียม (ūnūntērīyom)chemical element
Ukrainian унунтрій
- унунтрій (ununtrij)chemical element
Cite this entry
ununtrium. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/ununtrium
“ununtrium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ununtrium. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “ununtrium,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/ununtrium.
Source: ununtrium on Wiktionary, CC BY-SA 4.0.