|Origin:||Translation of German X-strahl, X representing 'unknown'|
a beam of radiation (1) that can go through solid objects and is used for photographing the inside of the body
a photograph of part of someone's body, taken using X-rays to see if anything is wrong:
The X-ray showed that her leg was not broken.
a medical examination made using X-rays:
I had to go to hospital for an X-ray.
a chest X-ray