optic nerve(redirected from CN II)
Also found in: Thesaurus, Medical, Encyclopedia.
Either of the second pair of cranial nerves that arise from the retina and carry visual information to the thalamus and other parts of the brain.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Physiology) the second cranial nerve, which provides a sensory pathway from the retina to the brain
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
either of a pair of cranial nerves consisting of sensory fibers that conduct impulses from the retina to the brain.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
The nerve that carries sensory information on vision from the retina of the eye to the brain. The optic nerve is a cranial nerve.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Switch to new thesaurus
|Noun||1.||optic nerve - the cranial nerve that serves the retina|
visual system - the sensory system for vision
cranial nerve - any of the 12 paired nerves that originate in the brain stem
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.