Definitions

American Heritage® Dictionary of the English Language, Fourth Edition

  1. n. The pattern produced on a photosensitive medium that has been exposed by holography and then photographically developed.
  2. n. The photosensitive medium so exposed and so developed. Also called holograph.

Wiktionary

  1. n. A three-dimensional image of an object created by holography

GNU Webster's 1913

  1. n. A photographic image giving the observer a seemingly three-dimensional view of the represented object. The three-dimensional effect is produced by exposing a photographic recording medium to an interference pattern generated by a coherent beam of light (as from a laser) reflected from the subject, interacting with a beam directly from the source. The full three-dimensional effect requires illumination of the image with coherent light, but less perfect three-dimensional visual effects may also be observed when the hologram is illuminated with white light.

WordNet 3.0

  1. n. the intermediate photograph (or photographic record) that contains information for reproducing a three-dimensional image by holography

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‘hologram’ has been looked up 870 times, added to 18 lists, commented on 1 time, and has a Scrabble score of 14.