antiparticle

About 0.07 uses per million words.

Meaning

1. noun A 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.

Similar words

anti-particle particle-antiparticle antisparticle antipartner antiphoton antimatter antiproton antilepton antiatom antiquark

Often followed by

of pairs pair is to with and are conjugation

Word family

antiparticles