Definition of "holography" [ho•log•ra•phy]

• A method of producing a three-dimensional image of an object by recording on a photographic plate or film the pattern of interference formed by a split laser beam and then illuminating the pattern either with a laser or with ordinary light. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The technology of holography is progressing day by day."
• "When I was younger, I had a friend whose father, Lloyd Cross, had been one of the top people in holography in the 1970's, and who was still sought as an expert on the technology."
• "Pondering the "Magical Thinking" post, and some of the comments I received about it, I remembered asking my friend to explain holography to me."