hyperon

noun
hy·per·on | \ ˈhī-pə-ˌrän \

Definition of hyperon 

: an elementary particle of the baryon group having greater mass than a nucleon

First Known Use of hyperon

1953, in the meaning defined above

History and Etymology for hyperon

probably from hyper- + -on entry 2

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The first known use of hyperon was in 1953

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to deposit or conceal in a hiding place

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