from The Century Dictionary and Cyclopedia

  • n. Inability to see in a dim light: same as nyctalopia.


Sorry, no etymologies found.



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  • (noun) - (1) A name given in allusion to hens, to that kind of defective vision which is comparatively good by day but lost or obscure by night.

    --Rev. John Boag's Imperial Lexicon of the English Language, c.1850

    (2) Hens . . . cannot see to pick up small grains in the dusk of the evening, and so employ this time in going to roost; this is sometimes called hen-blindness.

    --John Good's Study of Medicine, 1834

    January 16, 2018