[{"Bold_text": "noun", "List Items": ["the quality or state of being dichromatic .", "Also calleddi·chro·ma·top·si·a[dahy-kroh-m, uh, -, top, -see-, uh].Ophthalmology.a defect of vision in which the retina responds to only two of the three primary colors.Compare monochromatism(def2) monochromatism(def2), trichromatism(def3) trichromatism(def3)."]}]