放射学 fàngshèxué radiology Definitions Defs Origin Strokes Stroke Words Sentences Sents 放射 fàngshè noun to radiate To emit rays of light or energy from a central point outward; also used to describe radioactivity.学 學 xué nounaffix branch of learning (bound form) a subject or branch of study; often used as a suffix for -logy, -ics, or -science