English dictionary
nyctalopia
/,n/I/k't/-/l/A/p/I/k/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder
Source: WordNet 3.0
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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.
Source: webster1913