Word.ws English Dictionary

anti-particle

anti-particle is the alternative form of antiparticle.

Meaning of antiparticle

Noun

antiparticle (plural antiparticles)

  1. (particle) A subatomic particle corresponding to another particle with the same mass, spin and mean lifetime but with charge, parity, strangeness and other quantum numbers flipped in sign; a particle that has a reversed world line to another.
    • There could be whole antiworlds and antipeople made out of antiparticles. However, if you meet your antiself, don't shake hands!1988, Stephen Hawking, A Brief History of Time: From the Big Bang to Black Holes, page 75

Forms of anti-particle

pluralanti-particles

Questions about anti-particle

What is anti-particle the alternative form of?
Anti-particle is the alternative form of antiparticle.

Words near anti-particle in the dictionary

  1. anti-ozone
  2. anti-ozones
  3. anti-pagan
  4. anti-Palestinianism
  5. anti-parliamentarianism
  6. anti-particle
  7. anti-particles
  8. anti-passback
  9. anti-patriarch
  10. anti-patriarchs
  11. anti-pattern

Source and license

Adapted from Wiktionary: anti-particle (page history and authors); antiparticle (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “anti-particle.” Word.ws, https://word.ws/anti-particle. Based on Wiktionary, CC BY-SA 4.0.