photoheliograph
Pho`to*he"li*o*graph, n. Etym: [Photo- + heliograph.] (Physics) Defn: A modified kind of telescope adapted to taking photographs of the sun.
Pho`to*he"li*o*graph, n. Etym: [Photo- + heliograph.] (Physics) Defn: A modified kind of telescope adapted to taking photographs of the sun.