English noun: nyctalopia | |||
| 1. | nyctalopia (state) inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder | ||
| Synonyms | moon blindness, night blindness | ||
| Broader (hypernym) | avitaminosis, hypovitaminosis, vision defect, visual defect, visual disorder, visual impairment | ||