Source : Webster's Revised Unabridged Dictionary (1913)

Demi-rilievo \Dem"i-ri*lie"vo\, n. [Pref. demi- + It. rilievo.]
   (Fine Arts)
   (a) Half relief; sculpture in relief of which the figures
       project from the background by one half their full
       roundness.
   (b) A work of sculpture of the above character. See
       {Alto-rilievo}.