nyctalopia

(redirected from Nightblindness)
Also found in: Thesaurus, Medical, Encyclopedia.

nyc·ta·lo·pi·a

 (nĭk′tə-lō′pē-ə)
[Late Latin nyctalōpia, from Greek nuktalōps, night-blind : nux, nukt-, night; see nekw-t- in Indo-European roots + alaos, blind + ōps, ōp-, eye; see okw- in Indo-European roots.]

nyc′ta·lo′pic (-lō′pĭk, -lŏp′ĭk) adj.
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.

nyctalopia

(ˌnɪktəˈləʊpɪə)
n
(Pathology) inability to see normally in dim light. Nontechnical name: night blindness Compare hemeralopia
[C17: via Late Latin from Greek nuktálōps, from nux night + alaos blind + ōps eye]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

night′ blind`ness


n.
a condition in which vision is normal in daylight but abnormally poor in dim light.
[1745–55]
night′blind`, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

nyctalopia

a condition of the eyes in which the sufferer can see clearly during the day or in bright light but has impaired vision at night or in poor light; night blindness.
See also: Eyes
night-blindness.
See also: Night
the loss of sight in darkness. — nyctalopic, adj.
See also: Blindness
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.

nyctalopia

(night blindness) The inability to see well in dim light.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.nyctalopia - inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder
avitaminosis, hypovitaminosis - any of several diseases caused by deficiency of one or more vitamins
vision defect, visual defect, visual disorder, visual impairment - impairment of the sense of sight
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

nyc·ta·lo·pi·a

n. nictalopía, visión imperfecta bajo iluminación baja.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
7.Which vitamin is known to prevent nightblindness? 8.Aschenputtel is the German name for which fairy tale heroine?
Hallmark symptoms of RP are nightblindness and visual field constriction.