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What does XN stand for?

XN stands for Night Blindness

This definition appears frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

See other definitions of XN

Samples in periodicals archive:

Features include adjustable neck strap and reflector, three bright LED's that light up two pages for reading, four standard 120-hour batteries, and a clip-on red night vision filter that minimizes night blindness when switching from light to dark.
The official noted that the Cuban-Venezuelan Mission Miracle eye-care program has helped Guyana "mop up the backlog" of 40,000 pending procedures for cataracts, pteridium and night blindness.