noun
1. electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target
• Syn: ↑X ray, ↑X-ray, ↑roentgen ray
• Hypernyms: ↑electromagnetic radiation, ↑electromagnetic wave, ↑nonparticulate radiation, ↑ionizing radiation
2. obtaining images by the use of X rays
• Syn: ↑X-raying
• Hypernyms: ↑imaging, ↑tomography
• Hyponyms: ↑computerized tomography, ↑computed tomography, ↑CT, ↑computerized axial tomography, ↑computed axial tomography, ↑CAT
Useful english dictionary. 2012.