| Noun | 1. | cyclotron - an accelerator that imparts energies of several million electron-volts to rapidly moving particles atom smasher, particle accelerator, accelerator - a scientific instrument that increases the kinetic energy of charged particles bevatron - a cyclotron that accelerates protons up to several billion electron volts synchrocyclotron - cyclotron that achieves relativistic velocities by modulating the frequency of the accelerating electric field synchrotron - cyclotron in which the electric field is maintained at a constant frequency |