Source : Webster's Revised Unabridged Dictionary (1913)

Phlebogram \Phleb"o*gram\, n. [Gr. ?, ? + -gram.] (Physiol.)
   A tracing (with the sphygmograph) of the movements of a vein,
   or of the venous pulse.

Source : WordNet®

phlebogram
     n : an X ray of a vein injected with a radiopaque contrast
         medium [syn: {venogram}]