tetartanopia
noun
te·tar·ta·no·pia
te-ˌtär-tə-ˈnō-pē-ə 
: dichromatism in which the spectrum is seen in tones of red and green with blue and yellow replaced by gray
Cite this Entry
“Tetartanopia.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/tetartanopia. Accessed 12 Jul. 2025.
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