1. [ noun ] (physics) electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target
Synonyms: roentgen_ray X-radiation
Related terms: ionizing_radiation electromagnetic_radiation
2. [ noun ] (photography) a radiogram made by exposing photographic film to X rays; used in medical diagnosis
Synonyms: X-ray_picture X-ray_photograph roentgenogram
Related terms: radiogram angiogram arthrogram encephalogram mammogram hysterosalpingogram arteriogram myelogram pyelogram venogram angiocardiogram