antiparticle: meaning, definition, pronunciation and examples
C2Technical / Scientific
Quick answer
What does “antiparticle” mean?
A subatomic particle that has the same mass as a given particle but opposite electric or magnetic properties (e.
Audio
Pronunciation
Definition
Meaning and Definition
A subatomic particle that has the same mass as a given particle but opposite electric or magnetic properties (e.g., charge).
In particle physics, a fundamental constituent of antimatter that corresponds to a normal matter particle, which annihilates upon contact with its particle counterpart, releasing energy.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or grammatical differences. UK English may use '-ise' in related terms like 'annihilise', but the core word is identical.
Connotations
Identical connotations of scientific precision and advanced physics in both varieties.
Frequency
Exclusively used in specialised scientific discourse with equal frequency in both varieties.
Grammar
How to Use “antiparticle” in a Sentence
The antiparticle of [a particle][A particle] and its antiparticleVocabulary
Collocations
Usage
Meaning in Context
Business
Virtually never used in business contexts.
Academic
Standard term in advanced physics textbooks, research papers, and lectures on quantum mechanics or cosmology.
Everyday
Extremely rare; only appears in popular science discussions about antimatter.
Technical
Core, precise term in particle physics, accelerator physics, and theoretical physics.
Vocabulary
Synonyms of “antiparticle”
Strong
Weak
Vocabulary
Antonyms of “antiparticle”
Watch out
Common Mistakes When Using “antiparticle”
- Spelling as 'anti particle' (should be one word or hyphenated: antiparticle or anti-particle).
- Using it to mean any opposing particle in a non-scientific context.
- Pronouncing it with equal stress on all four syllables; primary stress is on 'an'.
FAQ
Frequently Asked Questions
Yes, antiparticles like positrons can be created and studied in isolation, but they will annihilate if they encounter their corresponding matter particle.
No. Antimatter is material composed of antiparticles. An antiparticle is the individual constituent (e.g., an antiproton), while antimatter refers to a structure made of such constituents (e.g., an antihydrogen atom).
According to the Standard Model of particle physics, all fermions (quarks, leptons) have distinct antiparticles. Some bosons, like the photon, are their own antiparticles.
They annihilate, converting their mass into energy, typically in the form of gamma-ray photons or other particle pairs, according to E=mc².
A subatomic particle that has the same mass as a given particle but opposite electric or magnetic properties (e.
Antiparticle is usually technical / scientific in register.
Antiparticle: in British English it is pronounced /ˈæntiˌpɑːtɪk(ə)l/, and in American English it is pronounced /ˈænˌtiˌpɑːrṭɪk(ə)l/ or /ˈæntaɪˌpɑːrṭɪk(ə)l/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
ANTIparticle = ANnihilates with + particle (like matter and antimatter in sci-fi).
Conceptual Metaphor
Opposite twin (a perfect mirror-image counterpart with reversed properties).
Practice
Quiz
What is the primary defining characteristic of an antiparticle?