sciagraphy
/sʌɪˈaɡrəfi
/(also skiagraphy)
noun [mass noun]
The use of shading and the projection of shadows to show perspective in architectural or technical drawing.These methods differed from contemporary pictorial practices by their greater science - particularly the use of shadow projection (skiagraphy)....
- His first process, sciagraphy or photogenic drawing, had been an invention.
Derivatives
sciagram
sciagraph
sciagraphic
Origin
Late 16th century: from French sciagraphie, via Latin from Greek skiagraphia, from skia 'shadow'.