from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An instrument for examining the interior structures of the eye, especially the retina, consisting essentially of a mirror that reflects light into the eye and a central hole through which the eye is examined.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. an instrument for examining the interior of the eye
from the GNU version of the Collaborative International Dictionary of English
- n. An instrument for viewing the interior of the eye, particularly the retina. Light is thrown into the eye by a mirror (usually concave) and the interior is then examined with or without the aid of a lens.
from The Century Dictionary and Cyclopedia
- n. An instrument for viewing the interior of the eye, especially for examining the retina.
- To view the eye by means of the ophthalmoscope.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. medical instrument for examining the retina of the eye
ophthalmo- + -scope (Wiktionary)