NYCTALOPIA
nyctalopia, night blindness, moon blindness
(noun) inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder
Source: WordNet® 3.1
Etymology
Noun
nyctalopia (countable and uncountable, plural nyctalopias or nyctalopiae)
(medicine) The inability to see clearly in dim light; night blindness
Anagrams
• polyactina
Source: Wiktionary
Nyc`ta*lo"pi*a, n. Etym: [L. nyctalopia, fr. nyctalops a nyctalops,
Gr. (Med.)
(a) A disease of the eye, in consequence of which the patient can see
well in a faint light or at twilight, but is unable to see during the
day or in a strong light; day blindness.
(b) See Moonblink.
Note: Some writers (as Quain) use the word in the opposite sense,
night blindness. See Hemeralopia.
Source: Webster’s Unabridged Dictionary 1913 Edition