IPA: //ˌrɛntɡənˈɒɡrəfi//
KK: /ˈrɛntɡənˌɒɡrəfi/
A type of photography that uses X-rays to create images of the inside of objects, especially for medical purposes.
The doctor ordered a roentgenography to examine the patient's bones for fractures.
Roentgenography → It is formed from "Roentgen" (the name of Wilhelm Conrad Roentgen, the physicist who discovered X-rays) and "-graphy" (from Greek "grapho", meaning to write or record). The word refers to the process of recording images using X-rays, named after the discoverer of the technology.
Think of Wilhelm Roentgen, who 'recorded' images using X-rays, and remember that 'roentgenography' is the technique of capturing those images.