Columbia Encyclopedia

(Encyclopedia) vase, vessel of pottery, glass, metal, stone, wood, or synthetic material. The pottery vase was anciently employed as a container for water (a hydria), wine and other products (an amphora), or oil (a ...

(Encyclopedia) lapis lazuli lăpˈĭs lăzˈo͝olē [key], gem, deep blue, violet, or greenish blue in color and usually flecked with yellow iron pyrites. It is composed of lazurite, a complex sodium aluminum silica...

(Encyclopedia) Oudry, Jean Baptiste zhäN bätēstˈ o͞odrēˈ [key], 1686–1755, French animal painter. A pupil of Largillière, he became court painter to Louis XV, recording the king's hunts in his paintings an...

(Encyclopedia) molybdenite məlĭbˈdənīt, mō– [key], a mineral, molybdenum disulfide, MoS2, blue-gray in color, with a metallic luster and greasy feel. It occurs in crystals of the hexagonal system but more co...

(Encyclopedia) Brook, Alexander, 1898–1980, American painter, b. Brooklyn, N.Y. Brook's paintings, which are consistently realistic, include portraits, still-life subjects, landscapes, and figures. His color is su...

(Encyclopedia) birthmark, pigmented maldevelopment of the skin that varies in size, either present at birth or developing later. Birthmarks may appear as moles (melanocytic nevi) that vary in color from light brown ...

(Encyclopedia) design, plan or arrangement of line, form, mass, color, and space in a pattern. A design may be created to serve a functional purpose as in architecture and in industrial designs or else purely to pro...

(Encyclopedia) Advent [Lat.,=coming], season of the Christian ecclesiastical year preceding Christmas, lasting in the West from the Sunday nearest Nov. 30 (St. Andrew's Day) until Christmas Eve. In the Roman Catholi...

(Encyclopedia) Bouts, Dierick, Dirk, or Thierry dēˈrĭk, dĭrk, tyĕˈrē bouts [key], c.1420–1475, early Netherlandish painter, b. Haarlem, active in Louvain. Bouts was influenced by Roger van der Weyden, the v...

(Encyclopedia) indicators, acid-base, organic compounds that, in aqueous solution, exhibit color changes indicative of the acidity or basicity of the solution. Common indicators include p-nitrophenol, which is color...