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[nik-tl-oh-pee-uh] /ˌnɪk tlˈoʊ pi ə/

noun, Ophthalmology.
inability to see normally in dim light Nontechnical name night blindness Compare hemeralopia

nyctalopia nyc·ta·lo·pi·a (nĭk’tə-lō’pē-ə)
A condition of the eyes in which vision is normal in daylight or other strong light but is abnormally weak or completely lost at night or in dim light and that results from vitamin A deficiency, disease, or hereditary factors. Also called night blindness.
nyc’ta·lo’pic (-lō’pĭk, -lŏp’ĭk) adj.


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    nycterine nyc·ter·ine (nĭk’tə-rīn’, -rēn’, -tər-ĭn’) adj.

  • Nycterohemeral

    nycterohemeral nyc·ter·o·hem·er·al (nĭk’tə-rō-hěm’ər-əl) adj. Both daily and nightly.

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    1. variant of .

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