Definitions for "Pentimento"
A condition found on older paintings where earlier layers are revealed as lead-containing pigments become more transparent over time.
the reappearance in a painting of an underlying image that had been painted over (usually when the later painting becomes transparent with age)
Derived from the Italian meaning "repentance." Pentimenti are the changes in composition which a painter makes while producing a painting. These alterations are often visible in the infra-red, to x-rays and sometimes to the naked eye.