achromatic

achromatic definition - medical

ach·ro·mat·ic (ăkˌrə-mătˈĭk)

adjective
  1. Of or relating to color perceived to have zero saturation and therefore no hue, such as neutral grays, white, or black.
  2. Refracting light without spectral color separation.
  3. Of or relating to cells or tissues difficult to stain with standard dyes.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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