Dictionary

antiparticle en · NOUN

Pronunciation

• /ˈæntiˌpɑ(ɹ)tɪkəl/
• (Southern-England) audio

Etymology

Etymology tree Proto-Indo-European *h₂ent- Proto-Indo-European *-s Proto-Indo-European *h₂énts Proto-Indo-European *-i Proto-Indo-European *h₂énti Ancient Greek ᾰ̓ντῐ́ (ăntĭ́) Ancient Greek ἀντι- (anti-)der. English anti- Proto-Indo-European *perh₃- Proto-Indo-European *-tis Proto-Indo-European *pérh₃tis? Proto-Italic *partis Latin pars Proto-Indo-European *-lós Proto-Indo-European *-elós Proto-Italic *-elos Proto-Italic *-kelos Latin -cula Latin particula Middle French particule English particle English antiparticle From anti- + particle.

Meanings

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.
   • Particles of matter and antimatter are identical, except for an opposite electrical charge. An electron has a negative charge whereas its antiparticle, the positron, has a positive charge, and both have an identical mass. 2010 November 19, Alok Jha, “We can't see antimatter but it really does matter”, in The Guardian, →ISSN:
   • 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

Deriveds

particle-antiparticle

Relateds

antimatter · self-conjugate

Translations (37)

da antipartikel (a subatomic particle) · sk antičastica (a subatomic particle) · tr antiparçacık (a subatomic particle) · nb antipartikkel (a subatomic particle) · hu antirészecske (a subatomic particle) · lv antidaļiņa (a subatomic particle) · sl antidelec (a subatomic particle) · fi antihiukkanen (a subatomic particle) · is andeind (a subatomic particle) · io antipartikulo (a subatomic particle) · nn antipartikkel (a subatomic particle) · de Antiteilchen (a subatomic particle) · el αντισωματίδιο (a subatomic particle) · ro antiparticulă (a subatomic particle) · cmn 反粒子 (a subatomic particle) · mk античестичка (a subatomic particle) · ja 反粒子 (a subatomic particle) · be антычасціца (a subatomic particle) · et antiosake (a subatomic particle) · es antipartícula (a subatomic particle) · ka ანტინაწილაკი (a subatomic particle) · az antizərrəcik (a subatomic particle) · ca antipartícula (a subatomic particle) · eo antipartiklo (a subatomic particle) · fr antiparticule (a subatomic particle) · hy հակամասնիկ (a subatomic particle) · pl antycząstka (a subatomic particle) · nl antideeltje (a subatomic particle) · uk античастинка (a subatomic particle) · af antideeltjie (a subatomic particle) · cs antičástice (a subatomic particle) · it antiparticella (a subatomic particle) · ru античасти́ца (a subatomic particle) · ko 반입자 (a subatomic particle) · sv antipartikel (a subatomic particle) · eo kontraŭpartiklo (a subatomic particle) · pt antipartícula (a subatomic particle)