1. Adjective.  (optics) Free from color; transmitting light without color-related distortion.
  2. Adjective.  Containing components such as achromatic lenses and prisms, designed to prevent color-related distortion.
  3. Adjective.  (biology) Uncolored; not absorbing color from a fluid; -- said of tissue.
  4. Adjective.  (music) Having only the diatonic notes of the scale; not modified by accidentals.
  5. Adjective.  Being achromatic in subject.

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This entry was last updated on RefTopia from its source on 3/20/2012.