Standard Lemma guide

ununtrium

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

No pronunciation record was provided for this word.

1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

Usage: dated, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: eka-thallium, nihonium, mul:Uut, mul:Nh

Antonyms: none provided

2

noun

Meaning 2

a radioactive transuranic element

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Uut, element 113, atomic number 113

Antonyms: none provided

Broader terms: chemical element, element

History

Etymology

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

Across languages

Translations

29 source translations are retained for this English entry.

  • Arabic: أُنُون تْرِيُّوم (ʔunun triyyum) — chemical element
  • Catalan: ununtri — chemical element
  • Chinese Mandarin: 元素113 — chemical element
  • Dutch: ununtrium — chemical element
  • Esperanto: ununtrio — chemical element
  • Estonian: ununtrium — chemical element
  • Finnish: ununtrium — chemical element
  • French: ununtrium — chemical element
  • Galician: ununtrio — chemical element
  • German: Ununtrium — chemical element
  • Greek: ουνούντριο (ounoúntrio) — chemical element
  • Hungarian: ununtrium — chemical element
  • Italian: ununtrio — chemical element
  • Korean: 우눈트륨 (ununteuryum) — chemical element
  • Malay: ununtrium — chemical element
  • Norwegian: ununtrium — chemical element
  • Polish: ununtrium — chemical element
  • Portuguese: ununtrio — chemical element
  • Romanian: ununtriu — chemical element
  • Russian: уну́нтрий (unúntrij) — chemical element
  • Serbo-Croatian: унунтријум — chemical element
  • Serbo-Croatian: унунтриј — chemical element
  • Serbo-Croatian: ununtrijum — chemical element
  • Serbo-Croatian: ununtrij — chemical element
  • Spanish: ununtrio — chemical element
  • Swedish: ununtrium — chemical element
  • Tamil: யுனண்ட்ரியம் (yuṉaṇṭriyam) — chemical element
  • Thai: อูนอูนเทรียม (ūnūntērīyom) — chemical element
  • Ukrainian: унунтрій (ununtrij) — chemical element