Still, Clyfford, 1904-80, American painter, b. Grandin, N.Dak. Still was a pioneer in the use of the mural-sized canvas. He painted vast, thick curtains of intense color, jaggedly torn to reveal other equally intense color areas. His work combines the gesture of abstract expressionism with a reliance on the sensations of pure color typical of color-field painting. Still's first one-man show was held in 1947, and his work is represented in New York's Museum of Modern Art, the San Francisco Museum of Modern Art, and many other collections. A substantial portion of his output awaits the selection of a city and the building of a museum devoted to his work.