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bottom quark

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bottomquark (pluralbottom quarks)

1. (physics) Aquark having afractionalelectric charge of${\displaystyle -\frac{1}{3}}$ and amass of about 4,100 to 4,400MeV.
   Symbol:${\displaystyle b}$

   Synonym:(dated)beauty quark

• quarks:up quark ·down quark ·charm quark ·strange quark ·top quark/truth quark ·bottom quark/beauty quark ^[edit]

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