The Collaborative International Dictionary
Spectroheliographic
Spectroheliograph \Spec`tro*he"li*o*graph\, n. (Astrophysics) An apparatus for making spectroheliograms, consisting of a spectroscopic camera used in combination with a telescope, and provided with clockwork for moving the sun's image across the slit. -- Spec`tro*he`li*o*graph"ic, a.