Medical Dictionary


adj ach·ro·mat·ic \ˌak-rə-ˈmat-ik\

Medical Definition of ACHROMATIC

:  refracting light without dispersing it into its constituent colors :  giving images practically free from extraneous colors <an achromatic telescope>
:  not readily colored by the usual staining agents
:  possessing or involving no hue :  being or involving only black, gray, or white <achromatic visual sensations> <achromatic light stimuli>
ach·ro·mat·i·cal·ly \-i-k(ə-)lē\ adverb
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