Definition of Color blindness. Meaning of Color blindness. Synonyms of Color blindness

Here you will find one or more explanations in English for the word Color blindness. Also in the bottom left of the page several parts of wikipedia pages related to the word Color blindness and, of course, Color blindness synonyms and on the right images related to the word Color blindness.

Definition of Color blindness

Color blindness
Blindness Blind"ness, n. State or condition of being blind, literally or figuratively. --Darwin. Color blindness, inability to distinguish certain color. See Daltonism.
Color blindness
Color Col"or, n. [Written also colour.] [OF. color, colur, colour, F. couleur, L. color; prob. akin to celare to conceal (the color taken as that which covers). See Helmet.] 1. A property depending on the relations of light to the eye, by which individual and specific differences in the hues and tints of objects are apprehended in vision; as, gay colors; sad colors, etc. Note: The sensation of color depends upon a peculiar function of the retina or optic nerve, in consequence of which rays of light produce different effects according to the length of their waves or undulations, waves of a certain length producing the sensation of red, shorter waves green, and those still shorter blue, etc. White, or ordinary, light consists of waves of various lengths so blended as to produce no effect of color, and the color of objects depends upon their power to absorb or reflect a greater or less proportion of the rays which fall upon them. 2. Any hue distinguished from white or black. 3. The hue or color characteristic of good health and spirits; ruddy complexion. Give color to my pale cheek. --Shak. 4. That which is used to give color; a paint; a pigment; as, oil colors or water colors. 5. That which covers or hides the real character of anything; semblance; excuse; disguise; appearance. They had let down the boat into the sea, under color as though they would have cast anchors out of the foreship. --Acts xxvii. 30. That he should die is worthy policy; But yet we want a color for his death. --Shak. 6. Shade or variety of character; kind; species. Boys and women are for the most part cattle of this color. --Shak. 7. A distinguishing badge, as a flag or similar symbol (usually in the plural); as, the colors or color of a ship or regiment; the colors of a race horse (that is, of the cap and jacket worn by the jockey). In the United States each regiment of infantry and artillery has two colors, one national and one regimental. --Farrow. 8. (Law) An apparent right; as where the defendant in trespass gave to the plaintiff an appearance of title, by stating his title specially, thus removing the cause from the jury to the court. --Blackstone. Note: Color is express when it is averred in the pleading, and implied when it is implied in the pleading. Body color. See under Body. Color blindness, total or partial inability to distinguish or recognize colors. See Daltonism. Complementary color, one of two colors so related to each other that when blended together they produce white light; -- so called because each color makes up to the other what it lacks to make it white. Artificial or pigment colors, when mixed, produce effects differing from those of the primary colors, in consequence of partial absorption. Of color (as persons, races, etc.), not of the white race; -- commonly meaning, esp. in the United States, of negro blood, pure or mixed. Primary colors, those developed from the solar beam by the prism, viz., red, orange, yellow, green, blue, indigo, and violet, which are reduced by some authors to three, -- red, green, and violet-blue. These three are sometimes called fundamental colors. Subjective or Accidental color, a false or spurious color seen in some instances, owing to the persistence of the luminous impression upon the retina, and a gradual change of its character, as where a wheel perfectly white, and with a circumference regularly subdivided, is made to revolve rapidly over a dark object, the teeth of the wheel appear to the eye of different shades of color varying with the rapidity of rotation. See Accidental colors, under Accidental.

Meaning of Color blindness from wikipedia

- Color blindness or color vision deficiency (CVD) is the decreased ability to see color or differences in color. The severity of color blindness ranges...
- Racial color blindness refers to the belief that a person's race or ethnicity should not influence their legal or social treatment in society. The multicultural...
- Congenital red–green color blindness is an inherited condition that is the root cause of the majority of cases of color blindness. It has no significant...
- color blindness is considered minor, the use of color in safety systems excludes the color blind from many occupations. Screening for color blindness...
- (color blindness), though several of the standards are designed to categorize normal color vision into sub-levels. With the large prevalence of color vision...
- position related to his field, he was given the task of creating a color blindness test. Ishihara studied existing tests and combined elements of the...
- symptom. The conditions include: monochromatic color blindness, poor visual acuity, and day-blindness. The syndrome is also present in an incomplete form...
- of people with color blindness, meaning they have a decreased ability to see color or differences in color. "Facts About Color Blindness". NEI. February...
- Gene therapy for color blindness is an experimental gene therapy of the human retina aiming to grant typical trichromatic color vision to individuals with...
- Color-blind casting is the practice of casting roles without regard to the actor's ethnicity or race. Alternative terms and similar practices include...