1. (noun)X ray, X-ray, X-radiation, roentgen ray electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target Synonyms: roentgenogram, roentgen ray
2. (verb)roentgenogram, X ray, X-ray, X-ray picture, X-ray photograph a radiogram made by exposing photographic film to X rays; used in medical diagnosis Synonyms: roentgenogram, roentgen ray
3. (verb)x-ray examine by taking x-rays
4. (verb)x-ray take an x-ray of something or somebody