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pigment

(Encyclopedia)pigment, substance that imparts color to other materials. In paint, the pigment is a powdered substance which, when mixed in the liquid vehicle, imparts color to a painted surface. The pigments used i...

long march

(Encyclopedia)long march, Chin., Changzheng, the journey of c.6,000 mi (9,660 km) undertaken by the Red Army of China in 1934–35. When their Jiangxi prov. Soviet base was encircled by the Nationalist army of Chia...

opal

(Encyclopedia)opal ōˈpəl [key], a mineral consisting of poorly crystalline to amorphous silica, SiO2·nH2O; the water content is quite variable but usually ranges from 3% to 10%. Common opal is usually colorless...

porgy

(Encyclopedia)porgy pôrˈgē [key], common name for members of the Sparidae, a family of small-mouthed fishes with strong teeth adapted for crushing their food of shellfish and crustaceans. Porgies are found in wa...

Shreveport

(Encyclopedia)Shreveport shrēvˈpôrt [key], city (1990 pop. 198,525), seat of Caddo parish, NW La., on the Red River near the Tex. and Ark. lines; inc. 1839. The third largest city in the state, it is a regional ...

Fort Abercrombie

(Encyclopedia)Fort Abercrombie ăbˈərkrŏmˌbē, –krŭmˌbē [key], U.S. army post on the west bank of the Red River, at Abercrombie, N.Dak.; est. 1858. Built to protect settlers in the Red River valley from at...

ruby

(Encyclopedia)ruby, precious stone, the transparent red variety of corundum, found chiefly in Myanmar, Thailand, and Sri Lanka and classified among the most valuable of gems. The Myanmarese stones are blood red, th...

Deloria, Vine Victor Jr.

(Encyclopedia)Deloria, Vine, Jr., 1933–2005, American author, theologian, historian, and activist, b. Marin, S.Dak. Considered by some to be the leading intellectua...

crossbill

(Encyclopedia)crossbill, bird of the genus Loxia, in the finch family. Its bill, crossed at the tips, is specialized for pulling apart pine cones and picking out the seeds. Crossbills are found in the evergreen for...

roulette

(Encyclopedia)roulette ro͞olĕtˈ [key], game of chance popular in gambling casinos, and in a simplified form elsewhere. In gambling houses the roulette wheel is set in an oblong table. Its outer area is marked of...