deficiency

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Related to color deficiency: protanopia, Color blind

deficiency

Biology the absence of a gene or a region of a chromosome normally present
References in periodicals archive ?
Color deficiency (which is often referred to as color blindness) is a hereditary defect that some people have at birth -- it has been estimated that almost 10% of the male population and about 0.
With our color vision enhancement lenses, and the addition of our genetic testing capabilities, we are striving to strengthen ColorMax's competitive market position, as well as to provide greater assistance to the estimated 12 million persons nationwide, and 250 million worldwide, who are handicapped by a color deficiency," Bailey added.
To learn more about ColorMax Technologies, obtain an Investor Fact Sheet or to learn more about color deficiency, visit the company's Web site at www.