| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,760,505,213 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
antiparticle |
Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson | 0.04 sec. |
antiparticle [ˈæntɪˌpɑːtɪkəl] n (Physics / Atomic Physics) any of a group of elementary particles that have the same mass and spin as their corresponding particle but have opposite values for all other nonzero quantum numbers. When a particle collides with its antiparticle, mutual annihilation occurs
ThesaurusLegend: Synonyms Related Words Antonyms
How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | ||
|---|---|---|---|
| [When] protons and neutrons cease to exist, they may in turn decay into electrons and their antiparticle partners, positrons. Researchers explain matter's dominance as a consequence of differences in the way a fundamental force of nature, called the weak force, affects subatomic particles and their antiparticles. When a particle and its antiparticle meet, they completely annihilate each other in a flash of pure energy. |
| Dictionary, Thesaurus, and Translations |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|