n. [ L. holographus entirely autograph, Gr. "olo`grafos; "o`los whole + gra`fein to write: cf. F. holographe, olographe. ] 1. A document, as a letter, deed, or will, wholly in the handwriting of the person from whom it proceeds and whose act it purports to be. [ 1913 Webster ]
(n) the branch of optics that deals with the use of coherent light from a laser in order to make a hologram that can then be used to create a three-dimensional image
(n) the intermediate photograph (or photographic record) that contains information for reproducing a three-dimensional image by holography, Syn. holograph