Phrase guide

nuclear fission

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

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1

noun

Meaning 1

A nuclear reaction in which a large nucleus splits into smaller ones, sometimes accompanied by the simultaneous release of energy.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

Qualifier: nuclear physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: fission

Antonyms: none provided

Broader terms: nuclear reaction

History

Etymology

No etymology was provided for this word.

Across languages

Translations

50 source translations are retained for this English entry.

  • Arabic: انشطار — atom-splitting nuclear reaction
  • Basque: fisio nuklear — atom-splitting nuclear reaction
  • Basque: fisio — atom-splitting nuclear reaction
  • Bulgarian: разцепване (razcepvane) — atom-splitting nuclear reaction
  • Chinese Mandarin: 核裂變 /核裂变 (hélièbiàn) — atom-splitting nuclear reaction
  • Chinese Mandarin: 核分裂 (héfēnliè) — atom-splitting nuclear reaction
  • Czech: jaderné štěpení — atom-splitting nuclear reaction
  • Czech: štěpení — atom-splitting nuclear reaction
  • Danish: kernespaltning — atom-splitting nuclear reaction
  • Danish: fission — atom-splitting nuclear reaction
  • Danish: spaltning — atom-splitting nuclear reaction
  • Dutch: kernsplijting — atom-splitting nuclear reaction
  • Dutch: splitsen — atom-splitting nuclear reaction
  • Finnish: ydinfissio — atom-splitting nuclear reaction
  • Finnish: fissio — atom-splitting nuclear reaction
  • French: fission nucléaire — atom-splitting nuclear reaction
  • French: fission — atom-splitting nuclear reaction
  • German: Kernspaltung — atom-splitting nuclear reaction
  • Greek: σχάση (schási) — atom-splitting nuclear reaction
  • Hindi: नाभिकीय विखंडन (nābhikīya vikhaṇḍan) — atom-splitting nuclear reaction
  • Hungarian: maghasadás — atom-splitting nuclear reaction
  • Hungarian: atommaghasadás — atom-splitting nuclear reaction
  • Icelandic: kjarnaklofnun — atom-splitting nuclear reaction
  • Icelandic: klofnun — atom-splitting nuclear reaction
  • Icelandic: kjarnasundrun — atom-splitting nuclear reaction
  • Icelandic: skipting — atom-splitting nuclear reaction
  • Italian: fissione — atom-splitting nuclear reaction
  • Japanese: 核分裂 (kakubunretsu) — atom-splitting nuclear reaction
  • Korean: 핵분열 (haekbunyeol) — atom-splitting nuclear reaction
  • Macedonian: ја́дрено це́пење (jádreno cépenje) — atom-splitting nuclear reaction
  • Macedonian: нуклеа́рна фи́сија (nukleárna físija) — atom-splitting nuclear reaction
  • Malayalam: അണുവിഘടനം (aṇuvighaṭanaṁ) — atom-splitting nuclear reaction
  • Māori: whakangotangotatanga — atom-splitting nuclear reaction
  • Norwegian: fisjonere — atom-splitting nuclear reaction
  • Norwegian: spalte — atom-splitting nuclear reaction
  • Norwegian Bokmål: fisjon — atom-splitting nuclear reaction
  • Norwegian Nynorsk: fisjon — atom-splitting nuclear reaction
  • Polish: rozszczepienie — atom-splitting nuclear reaction
  • Portuguese: fissão nuclear — atom-splitting nuclear reaction
  • Portuguese: fissão — atom-splitting nuclear reaction
  • Russian: я́дерное деле́ние (jádernoje delénije) — atom-splitting nuclear reaction
  • Russian: деле́ние ядра́ (delénije jadrá) — atom-splitting nuclear reaction
  • Russian: расщепле́ние (rasščeplénije) — atom-splitting nuclear reaction
  • Spanish: fisión nuclear — atom-splitting nuclear reaction
  • Spanish: fisión — atom-splitting nuclear reaction
  • Swedish: kärnklyvning — atom-splitting nuclear reaction
  • Swedish: atomklyvning — atom-splitting nuclear reaction
  • Swedish: fission — atom-splitting nuclear reaction
  • Tagalog: pagsipak — atom-splitting nuclear reaction
  • Tagalog: sasipak — atom-splitting nuclear reaction