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nyctalopia

American  
[nik-tl-oh-pee-uh] / ˌnɪk tlˈoʊ pi ə /

noun

Ophthalmology.
  1. night blindness.

  2. hemeralopia.


nyctalopia British  
/ ˌnɪktəˈləʊpɪə /

noun

  1. Nontechnical name: night blindness.  inability to see normally in dim light Compare hemeralopia

"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

Other Word Forms

  • nyctalopic adjective

Etymology

Origin of nyctalopia

1675–85; < Late Latin nyctalōpia < Greek nykt- nyct- + al ( aós ) blind + -ōpia -opia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The villain of Black Limelight suffers from "nyctalopia."

From Time Magazine Archive

Butellise, or night-blindness, described, 332. --------, or nyctalopia, an ophthalmia that affects our seamen in the Mediterranean, 433.

From An Account of Timbuctoo and Housa Territories in the Interior of Africa by Jackson, James Grey

His nyctalopia was a great advantage, his cat-like sight enabling him to distinguish the smallest object in the deepest gloom.

From In Search of the Castaways; or the Children of Captain Grant by Verne, Jules

Government, offer to it, to discover the remedy for nyctalopia, 335.

From An Account of Timbuctoo and Housa Territories in the Interior of Africa by Jackson, James Grey

A temporary evening blindness occasioned by sleeping in the moonshine in tropical climates; it is technically designated nyctalopia.

From The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. by Belcher, Edward, Sir