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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

abstraction, abstract entity go
a general concept formed by extracting common features from specific examples

attribute go
an abstraction belonging to or characteristic of an entity

state go
the way something is with respect to its main attributes

imperfection, imperfectness go
the state or an instance of being imperfect

defect go
an imperfection in a bodily system

birth defect, congenital anomaly, congenital defect, congenital disorder, congenital abnormality go
a defect that is present at birth

color blindness, colour blindness, color vision deficiency, colour vision deficiency
genetic inability to distinguish differences in hue

noun.state

2 Subcategories

dichromacy, dichromatism, dichromatopsia, dichromia, dichromasy go
a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision)
monochromacy, monochromatism, monochromatic vision, monochromia, monochromasy go
complete color blindness