eta-c particle
[ ā′tə-sē′, ē′tə- ]
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An electrically neutral meson having a mass 5,832 times that of the electron and a mean lifetime of approximately 3.1 X 10-22 seconds. See Table at subatomic particle.
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Words nearby eta-c particle
E. Sussex, et, eta, Eta Carinae, eta-c meson, eta-c particle, etaerio, étagère, e-tail, e-tailing, et al.
The American Heritage® Science Dictionary
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