ununtrium

Systematic element name, from un- +‎ un- +‎ tri- +‎ -ium.

ununtrium (uncountable)

1. (dated) The systematic element name for the chemical element with atomic number 113 (symbol Uut). The element is now named nihonium.

   Synonyms: eka-thallium, nihonium, Uut, Nh

   • 2015 December 30, “Discovery and Assignment of Elements with Atomic Numbers 113, 115, 117 and 118”, in IUPAC‎^[1]:

     “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.

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ununtrium

1. nihonium

   Synonym: nihonium

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ununtrium n (uncountable, no diminutive)

1. ununtrium

ununtrium (genitive ununtriumi, partitive ununtriumi or ununtriumit)

1. ununtrium

Internationalism (see English ununtrium).

• IPA^(key): /ˈun.un.trium/, [ˈun.un̪ˌt̪rium]
• Rhymes: -ium
• Syllabification^(key): un‧un‧tri‧um
• Hyphenation^(key): un‧un‧tri‧um

ununtrium (dated)

1. ununtrium

• (element 113): nihonium

• (Classical Latin) IPA^(key): [uːˈnuːn.tri.ũː]
• (modern Italianate Ecclesiastical) IPA^(key): [uˈnun.tri.um]

ūnūntrium n (genitive ūnūntriī); second declension

1. ununtrium

Second-declension noun (neuter).

ununtrium n (genitive singular ununtria, declension pattern of mesto)

1. ununtrium (element)