hemeralopia

[ hem-er-uh-loh-pee-uh ]

noun

, Ophthalmology.

1. a condition of the eyes in which sight is normal in the night or in a dim light but is abnormally poor or wholly absent in the day or in a bright light.

hemeralopia

/ ˌhɛmərəˈlɒpɪk; ˌhɛmərəˈləʊpɪə /

noun

1. inability to see clearly in bright light Nontechnical nameday blindness Compare nyctalopia

Derived Forms

• hemeralopic, adjective

Other Words From

• hem·er·a·lop·ic [hem-er-, uh, -, lop, -ik], adjective

Word History and Origins

Origin of hemeralopia¹

1700–10; < New Latin < Greek hēmeralōp- (stem of hēmerálōps having such a condition ( hēmer ( a ) day + al ( aós ) blind + -ōps having such an appearance) + -ia -ia; -opia

Word History and Origins

Origin of hemeralopia¹

C18: New Latin, from Greek hēmeralōps, from hēmera day + alaos blind + ōps eye