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Anatomy The small, circular, optically insensitive region in the retina where fibers of the optic nerve emerge from the eyeball. It has no rods or cones. Also called optic disk.
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A part of an area that cannot be directly observed under existing circumstances.
(noun)
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An area where radio reception is weak or nonexistent.
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A subject about which one is markedly ignorant or prejudiced: "Of course, all of us . . . have our crotchets and our blind spots. I abhor novels written in the present tense” ( Mordecai Richler).
(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.