Emily Dickinson Lexicon

SCI-AG'RA-PHY, n. [Gr. σκιαγραφια; σκια, a shadow, and γραφω, to describe.]

1. The art of sketching or delineating.
2. In architecture, the profile or section of a building to exhibit its interior structure. – Bailey.
3. In astronomy, the art of finding the hour of the day night by the shadows of objects, caused by the sun, moon, or stars; the art of dialing. – Ash. Bailey.