Phrase guide

nuclear winter

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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No pronunciation record was provided for this word.

1

noun

Meaning 1

A predicted drop in global temperature following a nuclear war due to dust in the upper atmosphere reducing sunlight reaching the ground.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a long period of darkness and extreme cold that scientists predict would follow a full-scale nuclear war; a layer of dust and smoke in the atmosphere would cover the earth and block the rays of the sun; most living organisms would perish

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: catastrophe, cataclysm

History

Etymology

Coined by Richard P. Turco et al. in a 1983 paper.

Across languages

Translations

24 source translations are retained for this English entry.

  • Catalan: hivern nuclear — predicted drop in global temperature following a nuclear war
  • Chinese Mandarin: 核冬天 (hédōngtiān) — predicted drop in global temperature following a nuclear war
  • Danish: atomvinter — predicted drop in global temperature following a nuclear war
  • Dutch: nucleaire winter — predicted drop in global temperature following a nuclear war
  • Finnish: ydintalvi — predicted drop in global temperature following a nuclear war
  • French: hiver nucléaire — predicted drop in global temperature following a nuclear war
  • Georgian: ბირთვული ზამთარი (birtvuli zamtari) — predicted drop in global temperature following a nuclear war
  • German: nuklearer Winter — predicted drop in global temperature following a nuclear war
  • Icelandic: kjarnorkuvetur — predicted drop in global temperature following a nuclear war
  • Icelandic: fimbulvetur — predicted drop in global temperature following a nuclear war
  • Indonesian: musim dingin nuklir — predicted drop in global temperature following a nuclear war
  • Italian: inverno nucleare — predicted drop in global temperature following a nuclear war
  • Japanese: 核の冬 (kaku no fuyu) — predicted drop in global temperature following a nuclear war
  • Malay: musim sejuk nuklear — predicted drop in global temperature following a nuclear war
  • Polish: zima nuklearna — predicted drop in global temperature following a nuclear war
  • Portuguese: inverno nuclear — predicted drop in global temperature following a nuclear war
  • Romanian: iarnă nucleară — predicted drop in global temperature following a nuclear war
  • Russian: ядерная зима (jád'ernaja zimá) — predicted drop in global temperature following a nuclear war
  • Spanish: invierno nuclear — predicted drop in global temperature following a nuclear war
  • Swedish: atomvinter — predicted drop in global temperature following a nuclear war
  • Swedish: kärnvapenvinter — predicted drop in global temperature following a nuclear war
  • Swedish: nukleär vinter — predicted drop in global temperature following a nuclear war
  • Turkish: nükleer kış — predicted drop in global temperature following a nuclear war
  • Welsh: y gaeaf niwclear — predicted drop in global temperature following a nuclear war