WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
the process of making a radiograph; producing an image on a radiosensitive surface by radiation other than visible light
Word Usage
"The presence of such stones in the kidney is very often inferential, and it will be a great boon, both to the surgeon and the patient, if we shall be able to demonstrate positively their presence by skiagraphy."