Definition of hyperon in English:

hyperon

Syllabification: hy·per·on
Pronunciation: /ˈhīpəˌrän
 
/

noun

Physics
  • An unstable subatomic particle classified as a baryon, heavier than the neutron and proton.
    More example sentences
    • The baryon classification took on new members, including particles more massive than the proton called hyperons.
    • We now call these particles ‘kaons’ and ‘lambda hyperons,’ but at the time they were simple ‘strange particles.’
    • The lightest particles were named leptons, those with medium mass, mesons, heavier particles were called baryons, and the heaviest particles of all, hyperons.

Origin

1950s: from hyper- 'beyond, over' + -on.

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