Phrase guide

neutron star

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: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

A degenerate star that has been so collapsed by gravity that its electrons and protons have been merged into neutrons by the intense pressure. The solid mass of neutrons is sometimes called neutronium.

Definition source: English Wiktionary via Wiktextract

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a star that has collapsed under its own gravity; it is composed of neutrons

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: star

Narrower terms: pulsar

History

Etymology

No etymology was provided for this word.

Across languages

Translations

51 source translations are retained for this English entry.

  • Amharic: የኒውትሮን ኮከብ (yäniwtəron kokäb) — star composed of neutrons
  • Arabic: نَجْم نْيُوتْرُونِيّ (najm nyūtrūniyy) — star composed of neutrons
  • Armenian: նեյտրոնային աստղ (neytronayin astġ) — star composed of neutrons
  • Azerbaijani: neytron ulduzu — star composed of neutrons
  • Bulgarian: неутро́нна звезда́ (neutrónna zvezdá) — star composed of neutrons
  • Catalan: estel de neutrons — star composed of neutrons
  • Catalan: estrella de neutrons — star composed of neutrons
  • Chinese Mandarin: 中子星 (zhōngzǐxīng) — star composed of neutrons
  • Czech: neutronová hvězda — star composed of neutrons
  • Dutch: neutronenster — star composed of neutrons
  • Esperanto: neŭtrona stelo — star composed of neutrons
  • Finnish: neutronitähti — star composed of neutrons
  • French: étoile à neutrons — star composed of neutrons
  • Georgian: ნეიტრონული ვარსკვლავი (neiṭronuli varsḳvlavi) — star composed of neutrons
  • German: Neutronenstern — star composed of neutrons
  • Greek: αστέρας νετρονίων (astéras netroníon) — star composed of neutrons
  • Icelandic: nifteindastjarna — star composed of neutrons
  • Indonesian: bintang neutron — star composed of neutrons
  • Interlingua: stella de neutrones — star composed of neutrons
  • Irish: neodrónréalta — star composed of neutrons
  • Italian: stella neutronica — star composed of neutrons
  • Japanese: 中性子星 (chūseishi-sei) — star composed of neutrons
  • Kazakh: нейтрондық жұлдыз (neitrondyq jūldyz) — star composed of neutrons
  • Korean: 중성자별 (jungseongjabyeol) — star composed of neutrons
  • Kyrgyz: нейтрон жылдызы (neytron jıldızı) — star composed of neutrons
  • Latvian: neitronu zvaigzne — star composed of neutrons
  • Lithuanian: neutroninė žvaigždė — star composed of neutrons
  • Norwegian Bokmål: nøytronstjerne — star composed of neutrons
  • Norwegian Nynorsk: nøytronstjerne — star composed of neutrons
  • Norwegian Nynorsk: nøytronstjerna — star composed of neutrons
  • Persian: ستاره نوترونی — star composed of neutrons
  • Polish: gwiazda neutronowa — star composed of neutrons
  • Portuguese: estrela de nêutrons — star composed of neutrons
  • Portuguese: estrela de neutrões — star composed of neutrons
  • Punjabi: ਨਿਉਟ੍ਰੋਨ ਤਾਰਾ (niuṭron tārā) — star composed of neutrons
  • Romanian: stea neutronică — star composed of neutrons
  • Russian: нейтро́нная звезда́ (nejtrónnaja zvezdá) — star composed of neutrons
  • Serbo-Croatian: neutronska zvijezda — star composed of neutrons
  • Serbo-Croatian: neutronska zvezda — star composed of neutrons
  • Slovak: neutrónová hviezda — star composed of neutrons
  • Slovene: nevtronska zvezda — star composed of neutrons
  • Spanish: estrella de neutrones — star composed of neutrons
  • Swedish: neutronstjärna — star composed of neutrons
  • Tagalog: bituin ng awansik — star composed of neutrons
  • Tajik: ситораи нейтронй (sitora-yi neytrony) — star composed of neutrons
  • Turkish: nötron yıldızı — star composed of neutrons
  • Turkish: ılıncık yıldızı — star composed of neutrons
  • Ukrainian: нейтронна зоря (nejtronna zorja) — star composed of neutrons
  • Uzbek: neytron yulduzi — star composed of neutrons
  • Vietnamese: sao neutron — star composed of neutrons
  • Welsh: sêr niwtron — star composed of neutrons