positron(redirected from Positrons)
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An elementary particle having the same mass and magnitude of charge as an electron but exhibiting a positive charge; the antiparticle of the electron. Also called antielectron.
(General Physics) physics the antiparticle of the electron, having the same mass but an equal and opposite charge. It is produced in certain decay processes and in pair production, annihilation occurring when it collides with an electron
[C20: from posi(tive + elec)tron]
an elementary particle with the same mass as an electron but a positive charge; the antiparticle of the electron.
[1930–35; posi (tive) + (elec) tron]