Standard Lemma guide

pentaquark

noun · 1 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.

  • Received-Pronunciation: /ˈpɛntəkwɔːk/
  • Received-Pronunciation: /-kwɑːk/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /ˈpɛntəkwɔɹk/
  • General-American: /-kwɑɹk/

1

noun

Meaning 1

Any of a class of subatomic particles (previously hypothetical, since detected, subject to confirmation) consisting of a group of five quarks (compared to three quarks in normal baryons and two in mesons), or more specifically four quarks and one antiquark (symbol Θ).

Definition source: English Wiktionary via Wiktextract

Usage: particle

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *pénkwe Proto-Hellenic *pénkwe Ancient Greek πέντε (pénte) Ancient Greek πεντᾰ- (pentă-)lbor. English penta- English quark English pentaquark From penta- + quark.

Across languages

Translations

7 source translations are retained for this English entry.

  • Chinese Mandarin: 五夸克態 (wǔkuākètài) — subatomic particle consisting of five quarks
  • French: pentaquark — subatomic particle consisting of five quarks
  • Japanese: ペンタクォーク (pentakwōku) — subatomic particle consisting of five quarks
  • Korean: 펜타쿼크 (pentakwokeu) — subatomic particle consisting of five quarks
  • Spanish: pentaquark — subatomic particle consisting of five quarks
  • Swedish: pentakvark — subatomic particle consisting of five quarks
  • Vietnamese: ngũ quark — subatomic particle consisting of five quarks