from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Variant of coronagraph.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A telescope, fitted with an attachment that blocks out direct rays from the sun, used to study and photograph the corona of the sun
- n. The attachment used in such a telescope
from The Century Dictionary and Cyclopedia
- n. An instrument, first suggested and tried by Huggins for photographing the sun's corona during an eclipse, or in full sunlight, if possible.
Sorry, no etymologies found.