Source : Webster's Revised Unabridged Dictionary (1913)

Imagery \Im"age*ry\, n. [OE. imagerie, F. imagerie.]
   1. The work of one who makes images or visible representation
      of objects; imitation work; images in general, or in mass.
      ``Painted imagery.'' --Shak.

            In those oratories might you see Rich carvings,
            portraitures, and imagery.            --Dryden.

   2. Fig.: Unreal show; imitation; appearance.

            What can thy imagery of sorrow mean?  --Prior.

   3. The work of the imagination or fancy; false ideas;
      imaginary phantasms.

            The imagery of a melancholic fancy.   --Atterbury.

   4. Rhetorical decoration in writing or speaking; vivid
      descriptions presenting or suggesting images of sensible
      objects; figures in discourse.

            I wish there may be in this poem any instance of
            good imagery.                         --Dryden.

Source : WordNet®

imagery
     n : the ability to form mental images of things or events; "he
         could still hear her in his imagination" [syn: {imagination},
          {imaging}, {mental imagery}]