Source : Webster's Revised Unabridged Dictionary (1913)

Skiagraph \Ski"a*graph\, n. Skiagraphy \Ski*ag"ra*phy\, n., etc.
   See {Sciagraph}, {Sciagraphy}, etc.

Source : WordNet®

skiagraphy
     n : the process of making a radiograph; producing an image on a
         radiosensitive surface by radiation other than visible
         light [syn: {radiography}]