The Collaborative International Dictionary of English v.0.48:

radiography \ra`di*og"ra*phy\ (r[=a]`d[i^]*[o^]g"r[.a]*f[y^]),
   n.
   Art or process of making radiographs, radiograms, or
   autoradiograms. -- ra`di*o*graph"ic
   (r[=a]`d[i^]*[-o]*gr[a^]f"[i^]k), ra`di*o*graph"ic*al
   (r[=a]`d[i^]*[-o]*gr[a^]f"[i^]*kal), a. --
   Ra`di*o*graph"ic*al*ly, adv.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

radiography
    n 1: the process of making a radiograph; producing an image on a
         radiosensitive surface by radiation other than visible
         light [syn: radiography, skiagraphy]
    2: photography that uses other kinds of radiation than visible
       light