Fromdi- +‎Ancient Greekχρῶμα(khrôma,“color”) +‎-ic.

dichromatic (comparativemoredichromatic,superlativemostdichromatic)

1. having twocolors.
2. (pathology) having a form ofcolorblindness in which only two of the threeprimary colors can be distinguished
3. (zoology) having two independent channels forconveyingcolor information in theeye.
4. (biology)occurring orexisting in two differentornamentations or colors, typically as a form ofsexual dimorphism.
5. (optics) having twohues, either of which may be visible depending on both the concentration of the absorbing substance and the depth or thickness of the medium traversed, such as inpumpkin seed oil. A form ofpolychromatism.
6. (optics) exhibitingdichroism;dichroic.

• (having two colors):bichrome,bicolour,bicoloured,duocolor,two-tone
• heterochromatic
• heterochromic

• bichromatic
• dichromacy
• dichromat

• dichromacy on Wikipedia.Wikipedia
• sexual dimorphism on Wikipedia.Wikipedia (section:Ornamentation / coloration)
• dichromatism on Wikipedia.Wikipedia (optics)

• chromatidic,midthoracic

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