antiproton

A1N1T1I1P3R1O1T1O1N1

noun

The antiparticle of the proton, having a negative electric charge.

Similar
pbar
OriginEnglish proton ← Ancient Greek πρῶτον (prôton) ← Proto-Indo-European *pró →
UncommonScrabble 12
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Meanings

nounantiproton (plural antiprotons)

plural antiprotons · alternative anti-proton

  1. natural sciencesThe antiparticle of the proton, having a negative electric charge.

    There were also particles no one had predicted that just appeared. Five of them […, i]n order of increasing modernity, […] are the neutrino, the pi meson, the antiproton, the quark and the Higgs boson.

    2012 March-April, Jeremy Bernstein, “A Palette of Particles”, in American Scientist, volume 100, number 2, page 146

    Synonyms: pbar

Synonyms & antonyms

nounThe antiparticle of the proton, having a negative electric charge.

Similar
pbar

Origin

  1. Proto-Indo-European*h₂ent-
  2. Proto-Indo-European*h₂énts
  3. Proto-Indo-European*h₂énti
  4. Ancient Greekᾰ̓ντῐ́ (ăntĭ́)
  5. Ancient Greekἀντι- (anti-)
  6. Englishanti-
  7. Proto-Indo-European*per-der.?
  8. Proto-Indo-European*pér
  9. Proto-Indo-European*pró
  10. Ancient Greekπρό (pró)
  11. Ancient Greekπρῶτον (prôton)
  12. Englishproton
  13. Englishantiproton

From anti- + proton.

Full word history & related roots →

Translations

Basque antiprotoi
  • antiprotoiantiparticle of the proton
Brazilian Portuguese antipróton
  • antiprótonantiparticle of the proton
Catalan antiprotó
  • antiprotóantiparticle of the proton
Chinese Mandarin 反質子 /反质子
  • 反質子 /反质子 (fǎnzhízi)antiparticle of the proton
European Portuguese antiprotão
  • antiprotãoantiparticle of the proton
Finnish antiprotoni
  • antiprotoniantiparticle of the proton
French antiproton
  • antiprotonantiparticle of the proton
German Antiproton
  • Antiprotonantiparticle of the proton
Icelandic andróteind
  • andróteindantiparticle of the proton
Italian antiprotone
  • antiprotoneantiparticle of the proton
Japanese 反陽子
  • 反陽子 (han'yōshi)antiparticle of the proton
Korean 반양성자, 반양자
  • 반양성자 (banyangseongja)antiparticle of the proton
  • 반양자 (banyangja)antiparticle of the proton
Polish antyproton
  • antyprotonantiparticle of the proton
Romanian antiproton
  • antiprotonantiparticle of the proton
Russian антипрото́н
  • антипрото́н (antiprotón)antiparticle of the proton
Spanish antiprotón
  • antiprotónantiparticle of the proton
Tagalog labanmulasik
  • labanmulasikantiparticle of the proton
Cite this entry
APA

antiproton. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/antiproton

MLA

“antiproton.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/antiproton. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “antiproton,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/antiproton.

Source: antiproton on Wiktionary, CC BY-SA 4.0.