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night blindness

noun, Ophthalmology.
a condition of the eyes in which vision is normal in daylight but abnormally poor at night or in a dim light; nyctalopia.
Origin of night blindness
Related forms
nightblind, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for night-blind

night blindness

(pathol) a nontechnical term for nyctalopia
Derived Forms
nightblind, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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night-blind in Medicine

night-blind adj.
Affected with nyctalopia.

night blindness n.
See nyctalopia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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