A depression in the surface of a bone resembling the imprint of a finger; specifically any of the shallow depressions on the inner surface of the cranium, corresponding to the cerebral convolutions.
Origin
Late 18th century.
Definition of digital impression in US English:
digital impression
noun
A depression in the surface of a bone resembling the imprint of a finger; specifically any of the shallow depressions on the inner surface of the cranium, corresponding to the cerebral convolutions.