from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A telescope which, unlike most telescopes used for astronomical purposes, contains an arrangement of lenses presenting an erect (non-inverted) image to the observer, suitable for observation of objects on the Earth's surface.
- n. An astronomical telescope which is physically located on the surface of the Earth, as distinct from a telescope located in outer space.
from the GNU version of the Collaborative International Dictionary of English
- n. a telescope whose eyepiece has one or two lenses more than the astronomical, for the purpose of inverting the image, and exhibiting objects erect.
Sorry, no etymologies found.