Help Wordnik hunt for a million missing words by backing our Kickstarter!


from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The state or quality of being day-blind.

from The Century Dictionary and Cyclopedia

  • n. The common name for the visual defect by which objects are seen distinctly only by a dim light: the opposite of daysight.


Sorry, no etymologies found.


  • Hemeralopia (etymologically day-blindness, but by common usage meaning day-vision or night-blindness) is a symptom of a peculiar degenerative disease of the retina, called retinitis pigmentosa.

    Anomalies and Curiosities of Medicine


Log in or sign up to get involved in the conversation. It's quick and easy.