chi particle

American  

[kahy pahrt-i-kuhl, kee pahrt-i-kuhl] / ˈkaɪ ˌpɑrt ɪ kəl, ˈki ˌpɑrt ɪ kəl /

noun

1. Physics. a meson with a neutral electric charge, a mass 6,687 times that of the electron, and an approximate mean lifetime of 1.5 × 10^-20 seconds.

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chi particle Scientific  

/ kī,kē /

1. An electrically neutral meson having a mass 6,687 times that of the electron and a mean lifetime of approximately 1.5 × 10 ^{- 20} seconds.

2. See Table at subatomic particle

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