| cockcroft | (n) British physicist who (with Ernest Walton in 1931) first split an atom (1897-1967), Syn. Sir John Douglas Cockcroft, Sir John Cockcroft |
| cockcroft and walton accelerator | (n) a high-voltage machine in which rectifiers charge capacitors that discharge and drive charged particles through an accelerating tube, Syn. Cockcroft and Walton voltage multiplier, Cockcroft-Walton voltage multiplier, Cockcroft-Walton accelerator |