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definitions

tritanomaly

[trī′tə-nŏm′ə-lē]
n.
  1. Partial color blindness resulting from a deficiency of a blue-sensitive retinal pigment.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.