achromatic Meaning, Definition & Usage

  1. adjective having no hue
    neutral.
    • neutral colors like black or white

WordNet

Ach`ro*mat"ic adjective
Etymology
Gr. colorless; priv. + , , color: cf. F. achromatique.
Definitions
  1. (Opt.) Free from color; transmitting light without decomposing it into its primary colors.
  2. (Biol.) Uncolored; not absorbing color from a fluid; -- said of tissue.

Webster 1913