Holograph (noun)

1. A three-dimensional image created by the interference of light beams from a laser or other coherent light source.
2. A document written entirely in the handwriting of the person whose signature it bears.

Origin:

From the greek words 'holos' meaning whole and 'graphein' meaning to write.

Examples:

1. The artist used holograph technology to create an interactive art installation.
2. The science museum featured an exhibit on holography and its applications.
3. The company developed a holograph display for its latest product launch.
4. The will was proven to be a holograph, as it was entirely in the deceased person's handwriting.
5. The collector purchased a rare historical document that was a holograph of a famous author's manuscript.