Definition of "nyctalopia" [‖Nyc•ta•lo•pi•a]

• See night blindness. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "His nyctalopia was a great advantage, his cat-like sight enabling him to distinguish the smallest object in the deepest gloom."
• "“Confound the nyctalopia!” said Paganel, inwardly, though delighted to be of any service to his friend."
• "Cataract attacks the blue-eyed more, but what is called ‘nyctalopia’ the dark-eyed."