Standard Lemma guide

uranium

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.

  • US: ūrā'nēəm
  • US: /ˌjuːˈɹeɪniəm/
  • UK: /jʊˈɹeɪniəm/
  • UK: /ˌjyːˈɹəɪ̯nɪ̝əm/
  • UK: /jʏˈɹəɪ̯nɪ̝əm/
  • US: Recorded audio is listed in the source snapshot.
  • General-American: Recorded audio is listed in the source snapshot.
  • rhymes with -eɪniəm
  • CMU ARPABET: Y ER0 EY1 N IY0 AH0 M Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

The element with atomic number 92 and symbol U. A radioactive silvery-grey metal in the actinide series.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: U, atomic number 92

Antonyms: none provided

Broader terms: metallic element, metal

Narrower terms: uranium 235, uranium 238

History

Etymology

Etymology tree Ancient Greek οὐρᾰνός (ourănós) Ancient Greek Οὐρᾰνός (Ourănós)der. Latin Ūranusbor. English Uranus Proto-Indo-European *-om Proto-Italic *-om Latin -umder. English -ium English uranium After Uranus (the planet), + -ium.

Across languages

Translations

98 source translations are retained for this English entry.

  • Afrikaans: uraan — uranium (element)
  • Albanian: urani — uranium (element)
  • Arabic: يُورَانِيُوم (yūrāniyūm) — uranium (element)
  • Arabic: أُورَانِيُوم (ʔūrāniyūm) — uranium (element)
  • Armenian: ուրան (uran) — uranium (element)
  • Asturian: uraniu — uranium (element)
  • Azerbaijani: uran — uranium (element)
  • Basque: uranioa — uranium (element)
  • Belarusian: ура́н (urán) — uranium (element)
  • Breton: uraniom — uranium (element)
  • Bulgarian: ура́н (urán) — uranium (element)
  • Catalan: urani — uranium (element)
  • Cherokee: ᏳᏪᏂᎥᎻ (yuwenivmi) — uranium (element)
  • Chinese Cantonese: 鈾 /铀 — uranium (element)
  • Chinese Mandarin: 鈾 /铀 (yóu) — uranium (element)
  • Cornish: uraniom — uranium (element)
  • Czech: uran — uranium (element)
  • Danish: uran — uranium (element)
  • Dutch: uranium — uranium (element)
  • Dutch: uraan — uranium (element)
  • Esperanto: uranio — uranium (element)
  • Estonian: uraan — uranium (element)
  • Faroese: uran — uranium (element)
  • Finnish: uraani — uranium (element)
  • French: uranium — uranium (element)
  • West-Frisian: uranium — uranium (element)
  • Friulian: urani — uranium (element)
  • Galician: uranio — uranium (element)
  • Georgian: ურანი (urani) — uranium (element)
  • German: Uran — uranium (element)
  • Greek: ουράνιο (ouránio) — uranium (element)
  • Gujarati: કિરણાતુ (kirṇātu) — uranium (element)
  • Hebrew: אורניום (urányum) — uranium (element)
  • Hindi: किरणातु (kirṇātu) — uranium (element)
  • Hindi: यूरेनियम (yūreniyam) — uranium (element)
  • Hungarian: urán — uranium (element)
  • Icelandic: úran — uranium (element)
  • Inuktitut: ᓄᖑᑦᓱᐃᑦᑐᖅ (nongotsoittoq) — uranium (element)
  • Irish: úráiniam — uranium (element)
  • Italian: uranio — uranium (element)
  • Japanese: ウラン (uran) — uranium (element)
  • Kashubian: ùran — uranium (element)
  • Khmer: អ៊ុយរ៉ាញ៉ូម (uyraanyoum) — uranium (element)
  • Korean: 우라늄 (uranyum) — uranium (element)
  • Korean: 우란 (uran) — uranium (element)
  • Central Kurdish: یورانیۆم (îwranyom) — uranium (element)
  • Latin: uranium — uranium (element)
  • Latvian: urāns — uranium (element)
  • Lithuanian: uranas — uranium (element)
  • Luxembourgish: Uran — uranium (element)
  • Macedonian: ура́ниум (uránium) — uranium (element)
  • Malay: uranium — uranium (element)
  • Maltese: uranju — uranium (element)
  • Manx: uraaniu — uranium (element)
  • Māori: konukarihi — uranium (element)
  • Mongolian: уран (uran) — uranium (element)
  • Nahuatl: ilhuicateotepoztli — uranium (element)
  • Navajo: łeetsoh — uranium (element)
  • Norwegian Bokmål: uran — uranium (element)
  • Norwegian Nynorsk: uran — uranium (element)
  • Occitan: urani — uranium (element)
  • Persian: اورانیوم (orâniyom) — uranium (element)
  • Polish: uran — uranium (element)
  • Portuguese: urânio — uranium (element)
  • Romanian: uraniu — uranium (element)
  • Russian: ура́н (urán) — uranium (element)
  • Santali: ᱭᱩᱨᱮᱱᱤᱭᱟᱢ (yureniyam) — uranium (element)
  • Scottish Gaelic: uranium — uranium (element)
  • Serbo-Croatian: уран — uranium (element)
  • Serbo-Croatian: у̀ра̄нӣј — uranium (element)
  • Serbo-Croatian: у̀ра̄нӣјум — uranium (element)
  • Serbo-Croatian: uran — uranium (element)
  • Serbo-Croatian: ùrānīj — uranium (element)
  • Serbo-Croatian: ùrānījum — uranium (element)
  • Slovak: urán — uranium (element)
  • Slovene: uran — uranium (element)
  • Spanish: uranio — uranium (element)
  • Swahili: urani — uranium (element)
  • Swahili: uraniamu — uranium (element)
  • Swedish: uran — uranium (element)
  • Tagalog: uranyo — uranium (element)
  • Tajik: уран (uran) — uranium (element)
  • Tamil: அடரியம் (aṭariyam) — uranium (element)
  • Tamil: யுரேனியம் (yurēṉiyam) — uranium (element)
  • Telugu: గురుత్వాకర్షణము (gurutvākarṣaṇamu) — uranium (element)
  • Thai: ยูเรเนียม (yuu-ree-nîiam) — uranium (element)
  • Turkish: uranyum — uranium (element)
  • Ottoman Turkish: اورانیوم (ūrāniyūm) — uranium (element)
  • Ukrainian: ура́н (urán) — uranium (element)
  • Urdu: یورینیئم (yūreniyam) — uranium (element)
  • Uyghur: ئۇران (uran) — uranium (element)
  • Uzbek: uran — uranium (element)
  • Uzbek: уран (uran) — uranium (element)
  • Vietnamese: urani — uranium (element)
  • Vietnamese: uran — uranium (element)
  • Volapük: luranin — uranium (element)
  • Welsh: wraniwm — uranium (element)
  • Yiddish: אוראַניום (uranyum) — uranium (element)
Real reading context

uranium in complete knowledge articles