| x-ray | | |
| n. (phenomenon) | 1. roentgen ray, x ray, x-radiation, x-ray | electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target. |
| ~ ionizing radiation | high-energy radiation capable of producing ionization in substances through which it passes. |
| ~ electromagnetic radiation, electromagnetic wave, nonparticulate radiation | radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge. |
| n. (artifact) | 2. roentgenogram, x ray, x-ray, x-ray photograph, x-ray picture | a radiogram made by exposing photographic film to X rays; used in medical diagnosis. |
| ~ angiocardiogram | a series of X rays representing the action of the heart and its blood vessels after the injection of a radiopaque substance. |
| ~ angiogram | an X-ray representation of blood vessels made after the injection of a radiopaque substance.; "angiograms are produced by angiography" |
| ~ arteriogram | an X ray of an artery filled with a contrast medium. |
| ~ arthrogram | an X ray of a joint after the injection of a contrast medium. |
| ~ pneumoencephalogram, encephalogram | an X ray of the brain made by replacing spinal fluid with a gas (usually oxygen) to improve contrast. |
| ~ hysterosalpingogram | X ray of the uterus and Fallopian tubes; usually done in diagnosing infertility (to see if there any blockages). |
| ~ mammogram | X-ray film of the soft tissue of the breast. |
| ~ myelogram | X-ray film of the spinal cord and spinal nerve roots and subarachnoid space. |
| ~ pyelogram | an X ray of the kidneys and ureters. |
| ~ radiograph, shadowgraph, skiagram, skiagraph, radiogram | a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays). |
| ~ phlebogram, venogram | an X ray of a vein injected with a radiopaque contrast medium. |
| v. (perception) | 3. x-ray | examine by taking x-rays. |
| ~ examine, see | observe, check out, and look over carefully or inspect.; "The customs agent examined the baggage"; "I must see your passport before you can enter the country" |
| v. (communication) | 4. x-ray | take an x-ray of something or somebody.; "The doctor x-rayed my chest" |
| ~ photography, picture taking | the act of taking and printing photographs. |
| ~ photograph, shoot, snap | record on photographic film.; "I photographed the scene of the accident"; "She snapped a picture of the President" |
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