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What is "Metamerism" - Definition & Explanation

Variations in color perceived under different light, surrounding colors, or by the observer's sense of color. http://en.wikipedia.org/wiki/Metamerism_(color)
A marked change in the colour of an object with a change in the spectral composition of the light by which it is viewed.
NOTE:
Metamerism can be judged only with reference to the changes occurring in other objects in the fields of view as the illumination is changed.
A metamerism occurs when the color standard and the submit do not match under all lighting conditions. This means that a solid color fabric when viewed under two different lights in a commercial light box, will appear to cast two different colors. The correct technical definition for metamerism is a conditional match that is, two or more samples match for one observer under one light source, but not under a different light source for that same observer.

Some other terms

Some more terms:

An inorganic fiber which is very strong, but has poor flexibility and poor abrasion resistance. Glass will not burn and will not conduct electricity. It is impervious to insects, mildew, and...
A system of measuring the weight of a continuous filament fiber. In the United States, this measurement is used to number all manufactured fibers (both filament and staple), and silk, but excludes...
A cotton, wool, and even synthetic fabric of a sateen or twill construction with extra fillings for long floats. Thankfully, it does not resemble true chinchilla fur. It has small nubs on the surface...
a) A process that follows the addition of a finish to a textile fabric and in which appropriate conditions are used to effect a chemical reaction. NOTE: Heat treatment for several minutes is...
A blouse most commonly refers to a woman's shirt, although the term is also used for some men's military uniform shirts. Blouses are often made of cotton or silk cloth and may or may not include a...

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