Hemeralopia
Pronunciation : Hem`e*ra*lo"pi*a
Part of Speech : n.
Etymology : [NL., fr. Gr. Nyctalopia.] (Med.)
Definition : Defn: A disease of the eyes, in consequence of which a person can see clearly or without pain only by daylight or a strong artificial light; day sight.
Note: Some writers (as Quain) use the word in the opposite sense, i. e., day blindness. See Nyctalopia.
Source : Webster's Unabridged Dictionary, 1913