- hexachromia
- n.the ability to distinguish only six of the seven colours of the spectrum, the exception being indigo. Most people cannot distinguish indigo from blue or violet.
Medical dictionary. 2011.
hexachromia
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hexachromia — n. the ability to distinguish only six of the seven colours of the spectrum, the exception being indigo. Most people cannot distinguish indigo from blue or violet … The new mediacal dictionary
