English dictionary
antiparticle
/'/&/nt/i/,p/A/rt/I/k/@/l/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy
Source: WordNet 3.0