sciagraphy noun. [sʌɪ'agrǝfi] Now rare. Also sciography. L16.
[French sciagraphie, scio- from Latin sciagraphia, scio- from Greek skiagraphia, skio-, from skia shadow: see -GRAPHY. Cf. SKIAGRAPHY.]
1. Drawing. The branch of perspective that deals with the projection of shadows; the delineation of an object in perspective showing gradations of light and shade. L16.
b. A drawing in perspective, esp. of the cross-section of a building, showing gradations of light and shade. E17.

2. The art of making or using sundials or similar devices to tell the time from the angle of a shadow. Long only in Dicts. M17.

3. An outline, a sketch. Chiefly transf. & fig., an overall perspective. L17-M18.

■ scia'graphic adjective E19.

■ scia'graphical adjective L17.

[TahlilGaran] English Dictionary ▲