Hem`e*ra*lo"pi*a (?), n. [NL., fr. Gr. , the opposite of ; day + of . See Nyctalopia.] Med.

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.

 

© Webster 1913.

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