Hemeralopia

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hemeralopia \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.
     [1913 Webster]


  
     Note: Some writers (as Quain) use the word in the opposite
           sense, i. e., day blindness. See {Nyctalopia}.
           [1913 Webster]

From WordNet (r) 2.0 [wn]:

  hemeralopia
       n : inability to see clearly in bright light [syn: {day
           blindness}]