holograph
UK: ˈhɒləɡrɑːf | US: ˈhoʊləɡræf
n. 1. A document entirely handwritten by its author.
n. 2. A three-dimensional image created by holography.
The word "holograph" combines Greek roots to convey the idea of "complete writing" (originally referring to wholly handwritten documents). Later, it was adopted in physics to describe "holography," where light patterns record a "whole" three-dimensional image. The dual meanings reflect the morphemes' literal and technical evolution.
The will was declared valid as a holograph, entirely penned by the testator.
Scientists used lasers to create a stunning holograph of the object.
Medieval holographs provide valuable insights into scribal practices.
The museum displayed a holograph of a dinosaur for visitors to examine.
Her signature on the holograph matched the verified samples.