Word Study
spectrogram |
spectrograph |
spectrographic |
spectrographic analysis |
spectrographically |
spectroheliogram
| spectroheliograph
| spectrological
| spectrology
| spectrometer
| spectrometric
spectroheliogram
CIDE DICTIONARY
spectroheliogram, n. [Spectrum + heloi- + -gram.].
A photograph of the sun made by monochromatic light, usually of the calcium line (k), and showing the sun's faculæ and prominences. [Webster 1913 Suppl.]
For further exploring for "spectroheliogram" in Webster Dictionary Online