chi-particle

chi particle

[kahy]
noun
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
chi particle   (kī, kē)  Pronunciation Key 
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. See Table at subatomic particle.
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