Source : Webster's Revised Unabridged Dictionary (1913)

Holographic \Hol`o*graph"ic\, a.
   Of the nature of a holograph; pertaining to holographs.

Source : WordNet®

holographic
     adj 1: of or relating to holography or holograms
     2: written entirely in one's own hand; "holographic document"
        [syn: {holographical}]
     3: written wholly in the handwriting of the signer; "a
        holographic will"