Webster's Revised Unabridged Dictionary · 1913

Sciagraphy

Sciagraphy , noun

[Greek {not transcribed}, from {not transcribed} drawing in light and shade; {not transcribed} a shadow + {not transcribed} to delineate, describe: compare French sciagraphie.]

1.
The art or science of projecting or delineating shadows as they fall in nature. — Gwilt
2.
(Architecture) Same as Sciagraph.
3.
(Physics) Same as Radiography.