X-Ray involves taking one or a few pictures of a body part. Often, x-rays of the bones are taken to look for a fracture (broken bone). Another common x-ray is a Chest X-ray, used to look for abnormalities in the lungs such as infection. An x-ray can be done of almost any body part, and takes usually just a few minutes.
The x-ray is read by a highly trained doctor (radiologist).