The Collaborative International Dictionary
sciagraphy
Sciagraph \Sci"a*graph\, n. [See Sciagraphy.]
(Arch.) An old term for a vertical section of a building; -- called also sciagraphy. See Vertical section, under Section.
(Phys.) A radiograph. [Written also skiagraph.]
Wiktionary
sciagraphy
n. 1 The art of representing shadows as realistically as possible. 2 (context obsolete English) A vertical section through a building. 3 radiography