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English definition of “colour-blind”

colour-blind

adjective UK (US colorblind)     /ˈkʌl.ə.blaɪnd/ US  /-ɚ-/
unable to see the difference between particular colours, especially green and redEyesight, glasses and lensesUsing the eyesThe eye and surrounding areaOptics, microscopy and lasers
(Definition of colour-blind adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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