roentgeno-, roentgen- +

Moving picture photography of x-ray studies.

1. A radiograph, the film on which an image is produced by exposure to x-rays.
2. To make a radiograph.

1. Another name for an X-ray.
2. A film produced by radiography.

Relating to or produced by roentgenography.

Radiography that uses X-rays to produce a roentgenogram.

Radiography, the process of obtaining an image for diagnosis using a radiological modality.

Radiologist, a physician who uses x-rays or other sources of radiation for diagnosis and treatment.

1. Radiology, the branch of medicine concerned with radioactive substaces, including x-rays, radioactive isotopes, and ionizing radiations, and the application of this information to prevention, diagnosis, and treatment of disease.
2. Radiology, the science of radiation and, specifically, the use of both ionizing (like X-ray) and nonionizing (like ultrasound) modalities for the diagnosis and treatment of disease.

Roentgenology is named for Wilhelm Conrad Roentgen who discovered X-rays. Roentgen, a professor of physics in Germany, wanted to prove his hypothesis that cathode rays could penetrate substances besides air.

When he saw that he could film his thumb and forefinger and their bones on a screen, the story goes that he replaced the screen with a photographic plate and X-rayed his wife's hand.

Roentgen's report of his findings, "On a New Kind of Rays", was published by the Physical-Medical Society of Würzburg, Germany, in December 1895.

A reference to materials that allow X-rays to penetrate with a minimum of absorption: The representative areas of the roentgenolucent film appear to be dark on the radiograph.

1. An instrument for measuring the intensity of radiation.
2. An instrument designed for measuring the mechanical effect of radiant energy.

It consists of a number of light discs, blackened on one side, placed at the ends of extended arms, supported on a pivot in an exhausted glass vessel.

When exposed to rays of light or heat, the arms rotate.

Radiometry, the measuring of the intensity of radiation.

Relating to not permitting the passage or transmission of x-rays: Roentgenopaque or radiopaque X-rays are impenetrable to certain materials and so an image is produced on a radiosensitive surface; such as, photographic film, by radiation other than with visible light.

There are roentgenopaque materials that are not penetrable by roentgen rays at the commonly used diagnostic energy procedures. Such roentgenopaque areas appear light or white on exposed films.

Radioparent, penetrable by radioactive rays.

Radioscope, an instrument used for inspection and examination of the inner structures of the body by fluoroscopic procedures.

Radioscopy, the inspection and examination of the inner structure of the body by fluoroscopic procedures.