antiparticles meaning

Meaning of antiparticles

What is the full meaning of antiparticles

ANTIPARTICLE, the 'pair' of an elementary particle, particle and antiparticle being mutually destructive, having the same mass and spin but having opposite values for their other properties (e.g. charge, baryon number, strangeness) [n]

Example of the word antiparticles placed on a Scrabble board.