moon blindness
1. inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder • Syn: nyctalopia, night blindness • Hypernyms: visual impairment, visual defect, vision defect, visual disorder, avitaminosis, hypovitaminosis 2. recurrent eye inflammation in horses; sometimes resulting in blindness • Syn: mooneye • Hypernyms: animal disease
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