直线加速器 zhíxiànjiāsùqì linear accelerator Origin Definitions Defs Strokes Stroke Words Sentences Sents 直线 直線 zhíxiàn noun straight line a straight line; the shortest distance between two points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.