|tritanopia (ˌtraɪtəˈnəʊpɪə, ˌtrɪt-)|
|a form of colour blindness in which there is a tendency to confuse blues and greens and in which sensitivity to blue is reduced|
|[C19/20: from New Latin, from Greek tritos third + New Latin anopia blindness; signifying that only two thirds of the spectrum can be distinguished]|
tritanopia tri·tan·o·pi·a (trī'tə-nō'pē-ə)
A deficiency in color preception characterized by an inability to discern blue and yellow due to an absence of blue-sensitive pigment in the retina.