Definition of "holograph"

holograph

noun
plural holographs
1. (law, textual criticism) A handwritten document that is solely the work of the person whose signature it bears, especially a letter, deed, or will; an original manuscript, a protograph.
2. A hologram.
  Quotations
  But when a holograph is placed backwards in its holder and illuminated with laser light, it can produce a real image […]
  1966, Electronic Design, volume 14, numbers 14-17, page 18
  Producing a holograph involves illumination of an object through the use of intersecting laser beams.
  1972, Army Research and Development, volumes 13-14, page 10
  Of course, it is impossible to show what a holograph is really like in a two dimensional picture such as this.
  1983, Ellen Nevins, Encyclopedia of Computers and Electronics, page 108
verb
third-person singular simple present holographs, present participle holographing, simple past and past participle holographed
1. To record by means of holography.