baryon

 
Pronunciation: /ˈbarɪɒn/

noun

Physics
  • a subatomic particle, such as a nucleon or hyperon, that has a mass equal to or greater than that of a proton.

Derivatives

baryonic

Pronunciation: /-ˈɒnɪk/
adjective

Origin:

1950s: from Greek barus 'heavy' + -on