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Hemeralopia

(Science: medicine) 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.

Some writers (as Quain) use the word in the opposite sense, i. E, day blindness. See nyctalopia.

Origin: NL, fr. Gr, the opposite of; day _ of . See nyctalopia.