Word Study
baryon
CIDE DICTIONARY
baryon, n.
any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1. [WordNet 1.5]
OXFORD DICTIONARY
baryon, n. Physics an elementary particle that is of equal mass to or greater mass than a proton (i.e. is a nucleon or a hyperon).
Derivative
baryonic adj.
Etymology
Gk barus heavy + -ON
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