particle accelerator
noun [ C ] uk/ˈpɑː.tɪ.kəl əkˌsel.ə.reɪ.tər/ us/ˈpɑːr.t̬ə.kəl əkˌsel.ɚ.eɪ.t̬ɚ/
粒子加速器
in physics, a machine that makes extremely small pieces of matter travel at very high speeds, so that scientists can study the way they behave
See also: accelerator