baryon: Meaning and Definition of

bar•y•on

Pronunciation: (bar'ē-on"), [key]
— n. Physics.
  1. a proton, neutron, or any elementary particle that decays into a set of particles that includes a proton. Cf. quark model.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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