| Answer | Crossword Clue |
|---|---|
| GLUON | Binding elementary particle |
| GLUON | Quark-binding particle |
| gluon | a hypothetical binding particle |
| gluons | GLUON, a hypothetical binding particle |
| gluons | unobserved massless particle with spin 1 that is believed to transmit the strong force between quarks, binding them together into baryons and mesons |
| gluon | unobserved massless particle with spin 1 that is believed to transmit the strong force between quarks, binding them together into baryons and mesons |
