The Collaborative International Dictionary of English v.0.48:

Iconography \I`co*nog"ra*phy\, n. [Gr. ? a sketch or
   description; e'ikw`n an image + ? of describe: cf. F.
   iconographie.]
   1. The art or representation by pictures or images; the
      description or study of portraiture or representation, as
      of persons; as, the iconography of the ancients.
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   2. The study of representative art in general.
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   Christian iconography, the study of the representations in
      art of the Deity, the persons of the Trinity, angels,
      saints, virtues, vices, etc.
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