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
antiparticle in American English
(ˈæntaɪˌpɑrtɪkəl; ˈæntiˌpɑrtɪkəl; ˈæntɪˌpɑrtɪkəl)
noun
any of the constituent particles of antimatter
see also antimatter
Examples of 'antiparticle' in a sentence
antiparticle
One consciousness propagated into the future and bounced back with antiparticle quantum entanglement.