sciagraph
To create a sciagraph (radiograph) of; to look inside by this or a similar technique.
transitive
The lighting from above also had a specific function: providing an even legibility to those "shaded" or sciagraphed areas treated with the technique known as schiacciato as to those of high relief.
Where it comes from
From Ancient Greek σκιά (skiá, “shadow”) + -graph.
Adapted from the Wiktionary entry sciagraph (CC BY-SA 4.0).