Meanings
nounnyctalopia (countable and uncountable, plural nyctalopias or nyctalopiae)
plural nyctalopias · plural nyctalopiae
- countableuncountablemedicineThe inability to see clearly in dim light; night blindness
Synonyms & antonyms
nouninability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder
Broader
Also see
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Ancient Greekνυκταλωπία
- Englishnyctalopia
Borrowed from Ancient Greek νυκταλωπία (nuktalōpía), from νύξ (núx, “night”), ἀλαός (alaós, “blind”), and ὄψ (óps, “eye”).
More words from Ancient Greek
Full word history & related roots →Cite this entry
APA
nyctalopia. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/nyctalopia
MLA
“nyctalopia.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/nyctalopia. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “nyctalopia,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/nyctalopia.
Source: nyctalopia on Wiktionary, CC BY-SA 4.0.