glueball

(redirected from Gluonium)
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glue·ball

 (glo͞o′bôl′)
n.
A hypothetical meson consisting of a bundle of gluons and containing no valence quarks.

[glue (because gluons mediate the strong interaction that binds quarks together) + ball.]

glueball

(ˈɡluːˌbɔːl)
n
a hypothetical composite subatomic particle