Standard Lemma guide

francium

noun · 3 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.

  • UK: /ˈfɹansɪəm/
  • UK: /ˈfɹɑːnsɪəm/
  • US: frăn'sēəm
  • US: /ˈfɹænsi.əm/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The chemical element (symbol Fr) with an atomic number of 87. It is an intensely radioactive alkali metal that is not found in nature.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A single atom of this element.

Definition source: English Wiktionary via Wiktextract

Usage: countable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a radioactive element of the alkali-metal group discovered as a disintegration product of actinium

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Fr, atomic number 87

Antonyms: none provided

Broader terms: metallic element, metal

History

Etymology

From French francium, from France + -ium (after the native country of Marguerite Perey).

Across languages

Translations

79 source translations are retained for this English entry.

  • Afrikaans: frankium — chemical element
  • Albanian: francium — chemical element
  • Arabic: فَرَنْسِيُوم (faransiyum) — chemical element
  • Arabic: فَرَنْكِيُوم (farankiyūm) — chemical element
  • Armenian: ֆրանսիում (fransium) — chemical element
  • Asturian: franciu — chemical element
  • Basque: frantzioa — chemical element
  • Belarusian: фра́нцый (fráncyj) — chemical element
  • Breton: frañsiom — chemical element
  • Bulgarian: фра́нций (fráncij) — chemical element
  • Catalan: franci — chemical element
  • Chinese Mandarin: 鈁 /钫 (fāng) — chemical element
  • Chinese Mandarin: 鍅 (fǎ) — chemical element
  • Cornish: frankyum — chemical element
  • Czech: francium — chemical element
  • Danish: francium — chemical element
  • Dutch: francium — chemical element
  • Esperanto: franciumo — chemical element
  • Estonian: frantsium — chemical element
  • Faroese: fransium — chemical element
  • Finnish: frankium — chemical element
  • French: francium — chemical element
  • West-Frisian: francium — chemical element
  • Friulian: franci — chemical element
  • Galician: francio — chemical element
  • Georgian: ფრანციუმი (pranciumi) — chemical element
  • German: Francium — chemical element
  • Greek: φράγκιο (frágkio) — chemical element
  • Hebrew: פרנציום (frantsiyum) — chemical element
  • Hindi: क्षुद्रातु (kṣudrātu) — chemical element
  • Hungarian: francium — chemical element
  • Icelandic: fransín — chemical element
  • Irish: frainciam — chemical element
  • Italian: francio — chemical element
  • Japanese: フランシウム (furanshiumu) — chemical element
  • Kashubian: frãs — chemical element
  • Kazakh: франций (fransii) — chemical element
  • Khmer: ហ្វ្រង់ស្យូម (frɑngsyoum) — chemical element
  • Korean: 프랑슘 (peurangsyum) — chemical element
  • Northern Kurdish: fransiyûm — chemical element
  • Latvian: francijs — chemical element
  • Lithuanian: francis — chemical element
  • Luxembourgish: Francium — chemical element
  • Macedonian: франциум (francium) — chemical element
  • Malay: fransium — chemical element
  • Maltese: fransjum — chemical element
  • Manx: frankium — chemical element
  • Moksha: франци (franci) — chemical element
  • Mongolian: франци (franci) — chemical element
  • Norwegian: francium — chemical element
  • Occitan: franci — chemical element
  • Ossetian: франций (francij) — chemical element
  • Persian: فرانسیم (ferânsiyom) — chemical element
  • Polish: frans — chemical element
  • Portuguese: frâncio — chemical element
  • Romanian: franciu — chemical element
  • Russian: фра́нций (fráncij) — chemical element
  • Scottish Gaelic: frainciam — chemical element
  • Serbo-Croatian: франциј — chemical element
  • Serbo-Croatian: францијум — chemical element
  • Serbo-Croatian: francij — chemical element
  • Serbo-Croatian: francijum — chemical element
  • Slovak: francium — chemical element
  • Slovene: fráncij — chemical element
  • Spanish: francio — chemical element
  • Swahili: fransi — chemical element
  • Swedish: francium — chemical element
  • Tajik: франсий (fransiy) — chemical element
  • Tamil: வெடியிதள் (veṭiyitaḷ) — chemical element
  • Tamil: பிரன்சியம் (piraṉciyam) — chemical element
  • Thai: แฟรนเซียม (frɛn-sîiam) — chemical element
  • Turkish: fransiyum — chemical element
  • Ukrainian: фра́нцій (fráncij) — chemical element
  • Uyghur: فرانسىي (fransiy) — chemical element
  • Uzbek: франций — chemical element
  • Uzbek: frantsiy — chemical element
  • Vietnamese: franxi — chemical element
  • Volapük: fransin — chemical element
  • Welsh: ffransiwm — chemical element