Dictionary
hol•o•gram
Pronunciation: (hol'u-gram", hō'lu-), [key]—
n. Optics.
a negative produced by exposing a high-resolution photographic plate, without camera or lens, near a subject illuminated by monochromatic, coherent radiation, as from a laser: when it is placed in a beam of coherent light a true three-dimensional image of the subject is formed. Also called
holograph. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.