| Noun | 1. | Cockcroft-Walton voltage multiplier - a high-voltage machine in which rectifiers charge capacitors that discharge and drive charged particles through an accelerating tube Cockcroft and Walton accelerator, Cockcroft and Walton voltage multiplier, Cockcroft-Walton accelerator atom smasher, particle accelerator, accelerator - a scientific instrument that increases the kinetic energy of charged particles |