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from The American HeritageĀ® Dictionary of the English Language, 4th Edition

  • n. Anatomy See blind spot.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Alternative spelling of optic disc.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the point where the optic nerve enters the retina; not sensitive to light


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