Meaning of antibaryon

an•ti•bar•y•on

Pronunciation: (an"tē-bar'ē-on", an"tī-), [key]
— n. Physics.
  1. the antiparticle of a baryon, having baryon number −1 and charge, strangeness, and other quantum numbers opposite in sign to those of the baryon.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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