The story
From proto- (“first (color)”) + an- (“without”) + -opia (“vision”).
Etymology from Wiktionary, CC BY-SA 4.0.
protanopia
Today it means: A form of color blindness. Involves a defect in distinguishing between red and green. Full definition →
Today it means: A form of color blindness. Involves a defect in distinguishing between red and green. Full definition →
From proto- (“first (color)”) + an- (“without”) + -opia (“vision”).
Etymology from Wiktionary, CC BY-SA 4.0.