Akademik

heliography

\\ˌhēlēˈägrəfē\ noun (-es)

1. [French héliographie, from hélio- heli- (I) + -graphie -graphy] : an early photographic process producing a photoengraving on a metal plate coated with an asphalt preparation; broadly : photography

2. [heli- (I) + -graphy] : the system, art, or practice of signaling with a heliograph

Useful english dictionary. 2012.