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color
(Encyclopedia)color, effect produced on the eye and its associated nerves by light waves of different wavelength or frequency. Light transmitted from an object to the eye stimulates the different color cones of the...color blindness
(Encyclopedia)color blindness, visual defect resulting in the inability to distinguish colors. About 8% of men and 0.5% of women experience some difficulty in color perception. Color blindness is usually an inherit...color index
(Encyclopedia)color index, in astronomy, difference in an object's brightness as recorded between any two well-defined bands of the electromagnetic spectrum by using optical filters of different colors. If blue and...four-color process
(Encyclopedia)four-color process: see printing. ...color-field painting
(Encyclopedia)color-field painting, abstract art movement that originated in the 1960s. Coming after the abstract expressionism of the 1950s, color-field painting represents a sharp change from the earlier movement...Noland, Kenneth
(Encyclopedia)Noland, Kenneth nōˈlənd [key], 1924–2010, American painter, b. Asheville, N.C. An outstanding colorist, Noland was one of the best-known exponents of the abstract painting movement known as color...Francis, Sam
(Encyclopedia)Francis, Sam, 1923–94, American painter, b. San Mateo, Calif. Educated in medicine, Francis began painting while recovering from an injury received in World War II. His mural-sized paintings are sta...value, in colorimetry
(Encyclopedia)value, in colorimetry: see color.Still, Clyfford
(Encyclopedia)Still, Clyfford, 1904–80, American painter, b. Grandin, N.Dak. A brilliant painter, he was one of the founders of abstract expressionism, although never one of the style's best-known practitioners. ...tanzanite
(Encyclopedia)tanzanite tănzănˈīt [key], beautiful gemstone discovered in 1967 in the Umba Valley near the Usambara Mts. in Tanzania, a precious variety of the mineral zoisite, a calcium aluminum silicate. Zois...Browse by Subject
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