Definition of color blindness Color blindness
We found 6 definitions of color blindness from 4 different sources.
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What does color blindness mean?
WordNet
Noun |
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| color blindness - genetic inability to distinguish differences in hue | ||
| colour blindness, color vision deficiency, colour vision deficiency | ||
| vision defect, visual defect, visual disorder, visual impairment impairment of the sense of sight | ||
| birth defect, congenital abnormality, congenital anomaly, congenital defect, congenital disorder a defect that is present at birth | ||
| dichromacy, dichromasy, dichromatism, dichromatopsia, dichromia 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) | ||
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Wiktionary 
- color blindness (Noun)
Any of several medical conditions in which the physical ability to see colors is impaired, especially Achromatopsia, Daltonism. - color blindness (Noun)
Indifference to a person's skin color or race.
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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color blindness
The disregard of racial characteristics in a selection procedure. -
color blindness
The inability or decreased ability to see color, or perceive color differences, under normal lighting conditions.
Wikipedia 
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Color blindness medically known as a colour vision deficiency is a kind of blindness where people can not see colors very well. It is inherited as a genetic condition. People who have color blindness are not able to tell the difference between certain colors. The gene for color blindness is carried in the X chromosome. Since males have an X-Y pairing and females have X-X, color blindness can occur much more easily in males and is almost always passed to them by their mothers.
The two most common kinds of color blindness are "green/red" and "blue/yellow." With each of these, people have trouble telling apart between the first/second color. While the genetic defect causing people to have trouble telling blue/yellow apart is the second most common defect it is also extremely rare as the defect of have no colour receptors and seeing only black and white is even more so.
Color blindness is caused by bad functioning of the retina. One of the cones (Color Sensitive Receptors) containing one pigment selective for each of the colors (red, green, and blue) are diminished or totally absent.
The cone is part of the eye that gathers information that has color, and a rod gathers information that is black and white.
Color blindness is also related to brain disfunctions where the eyes see everything correctly and the brain interprets it wrong.
Colour blindness can not be fixed and is generally carried by the female and passed onto males. Around one twentieth of females compared to the amount
