from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any object, natural or man-made, that blocks the light of an object from an observer, typically used in reference to astronomical events.
from The Century Dictionary and Cyclopedia
- n. That which occults: specifically applied to the mechanism or device which, in lighthouses, periodically interrupts or occults the beam of light; also to the device used in heliographic signaling to interrupt or divert the beam of light reflected from the mirror of the heliostat, heliograph, or heliotrope.
Sorry, no etymologies found.