What does antipartticle mean?

antipartticle meaning in General Dictionary

A fundamental particle which has exactly the same mass among the typical fundamental particles but which has a reverse cost and for which particular other of properties e g baryon quantity strangeness may be reverse to that of normal particle The antiparticle to an electron is called a positron the antiparticle to a proton is called an antiproton the antiparticle to a neutron is known as an antineutron When a particle as well as its corresponding antiparticle collide they usually annihilate each other aided by the creation of large quantities of energy typically in the shape of radiation The conversation of a proton and antiproton cause annihilation with creation of mesons