baryon Hear it!

baryon definition

bary·on (bar′ē än′, ber′-)

noun

Particle Physics a subatomic particle that is both a hadron and a fermion, as a nucleon or hyperon: the proton is the baryon with the smallest mass

Etymology: < Gr barys, heavy (see grave) + (electr)on

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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