antiparticle
/ˈæntiˌpɑ(ɹ)tɪkəl/noun
antiparticle is a noun meaning “A subatomic particle corresponding to another particle with the same mass, spin and mean lifetime but with charge, parity, strangeness and other…” (English Wiktionary, September 2026). It is spelled A-N-T-I-P-A-R-T-I-C-L-E, and it appears about once in every 25 million words in written English (wordfreq, 2021 data). The plural of antiparticle is antiparticles.
What does antiparticle mean?
noun
- 1
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.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce antiparticle?
- /ˈæntiˌpɑ(ɹ)tɪkəl/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-antiparticle.wav, Wikimedia Commons (author and licence on each file's page).
Forms of antiparticle
- antiparticles plural
- anti-particle
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is antiparticle?
Antiparticle appears about once in every 25 million words in written English, the 152,206th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Antiparticle in Spanish, French, German and Portuguese
In the sense a subatomic particle:
| Language | Words |
|---|---|
| French | antiparticule |
| German | Antiteilchen |
| Portuguese | antipartícula |
| Spanish | antipartícula |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does antiparticle come from?
From anti- + particle.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).