noun🔗ShareA 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."When a high-energy collision creates an electron, it almost always creates its corresponding antiparticle, a positron, at the same time. "physicsscienceenergyChat with AIVocabulary GamePractice Reading
