回旋加速器 huíxuánjiāsùqì cyclotron Origin Definitions Defs Strokes Stroke Words Sentences Sents 回旋 huíxuán to circle to circle around; to wheel about; to go around加速器 jiāsùqì noun accelerator A device used to increase the speed and energy of particles, such as a particle accelerator; also used in computing to speed up processes.