Phrase guide

Schrödinger's cat

name · noun · 4 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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  • General-American: /ˌʃɹoʊdɪŋɚz ˈkæt/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

name

Meaning 1

The thought experiment which was devised by Erwin Schrödinger, is usually considered a paradox, involves a Schrödinger's cat and is typically supposed to be analysed from the point of view of quantum mechanics.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

A Schrödinger's cat (a hypothetical cat that may or may not be dead) in particular, especially when implied to be the only Schrödinger's cat in the world.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A hypothetical cat that is depicted as being surrounded by perfectly uncertain circumstances that make an external observer absolutely unable to deem the cat either alive or dead, especially if the possibilities of survival of the cat are expected to be analysed from the point of view of quantum mechanics. Typically, these circumstances involve the cat being inside a box while being the victim of a danger that may or may not kill it, such as radiation.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

Any hypothetical situation whose circumstances make it impossible to see which among two contrary propositions is correct, especially if the situation is expected to be analysed from the point of view of quantum mechanics.

Definition source: English Wiktionary via Wiktextract

Usage: broadly

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Named after Austrian physicist Erwin Schrödinger (1887–1961).

Across languages

Translations

33 source translations are retained for this English entry.

  • Arabic: قِطَّة شْرُودِنْغِر — thought experiment
  • Basque: Schrodingeren katu — thought experiment
  • Bulgarian: ко́тка на Шрьо́дингер (kótka na Šrjódinger) — thought experiment
  • Catalan: gat de Schrödinger — thought experiment
  • Chinese Mandarin: 薛定諤的貓 /薛定谔的猫 (Xuēdìng'è de māo) — thought experiment
  • Chinese Mandarin: 薛丁格的貓 /薛丁格的猫 (Xuēdīnggé de māo) — thought experiment
  • Chinese Mandarin: 薛定諤貓 /薛定谔猫 — thought experiment
  • Czech: Schrödingerova kočka — thought experiment
  • Danish: Schrödingers kat — thought experiment
  • Dutch: Schrödingers kat — thought experiment
  • Esperanto: Kato de Schrödinger — thought experiment
  • Finnish: Schrödingerin kissa — thought experiment
  • French: chat de Schrödinger — thought experiment
  • Galician: gato de Schrödinger — thought experiment
  • Georgian: შრედინგერის კატა (šredingeris ḳaṭa) — thought experiment
  • German: Schrödingers Katze — thought experiment
  • Hebrew: החתול של שרדינגר (he'ħatul šel šredinger) — thought experiment
  • Hungarian: Schrödinger macskája — thought experiment
  • Icelandic: Schrödingers kötturinn — thought experiment
  • Italian: paradosso del gatto di Schrödinger — thought experiment
  • Japanese: シュレーディンガーの猫 (shurēdingā no neko) — thought experiment
  • Korean: 슈뢰딩거의 고양이 (Syuroedinggeoui goyang'i) — thought experiment
  • Norwegian: Schrödingers katt — thought experiment
  • Persian: گربه شرودینگر — thought experiment
  • Polish: kot Schrödingera — thought experiment
  • Portuguese: gato de Schrödinger — thought experiment
  • Romanian: pisica lui Schrödinger — thought experiment
  • Russian: кот Шрёдингера (kot Šrjódingera) — thought experiment
  • Slovene: Schrödingerjeva mačka — thought experiment
  • Spanish: gato de Schrödinger — thought experiment
  • Swedish: Schrödingers katt — thought experiment
  • Tagalog: pusa ni Schrödinger — thought experiment
  • Vietnamese: con mèo của Schrödinger — thought experiment