optic-nerve

optic nerve

noun Anatomy.
either one of the second pair of cranial nerves, consisting of sensory fibers that conduct impulses from the retina to the brain.

Origin:
1605–15

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Collins
World English Dictionary
optic nerve
 
n
the second cranial nerve, which provides a sensory pathway from the retina to the brain

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

optic nerve n.
A nerve that originates from the retina, passes out of the eye socket to the chiasm, where part of its fibers cross to the opposite side and pass to the geniculate bodies and anterior quadrigeminal body. Also called second cranial nerve.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
optic nerve  
Either of the second pair of cranial nerves, which carry sensory information relating to vision from the retina of the eye to the brain. Disease or injury of the optic nerve can result in partial or total blindness.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

optic nerve definition


The nerve that carries electrical signals from the retina in the eye to the brain.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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