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barium

(Encyclopedia)barium bârˈēəm [key] [Gr.,=heavy], metallic chemical element; symbol Ba; at. no. 56; at. wt. 137.327; m.p. 725℃; b.p. 1,640℃; sp. gr. 3.5 at 20℃; valence +2. Barium is a soft, silver-white, ...

Joyce, James

(Encyclopedia)Joyce, James, 1882–1941, Irish novelist. Perhaps the most influential and significant novelist of the 20th cent., Joyce was a master of the English language, exploiting all of its resources. His nov...

impressionism, in painting

(Encyclopedia)impressionism, in painting, late-19th-century French school that was generally characterized by the attempt to depict transitory visual impressions, often painted directly from nature, and by the use ...

Eastman, George

(Encyclopedia)Eastman, George, 1854–1932, American inventor, industrialist, and philanthropist, b. Waterville, N.Y. By mass production of his photographic inventions, Eastman enormously stimulated the development...

Derain, André

(Encyclopedia)Derain, André äNdrāˈ dərăNˈ [key], 1880–1954, French painter. He studied for a short time under Carrière. Derain's friendship with Vlaminck and Matisse led to his association c.1905 with the...

dolomite

(Encyclopedia)dolomite dōˈləmītˌ, dŏlˈə– [key]. 1 Mineral, calcium magnesium carbonate, CaMg (CO3)2. It is commonly crystalline and is white, gray, brown, or reddish in color with a vitreous to pearly lus...

albino

(Encyclopedia)albino ălbīˈnō [key] [Port.,=white], animal or plant lacking normal pigmentation. The absence of pigment is observed in the body covering (skin, hair, and feathers) and in the iris of the eye. The...

Cuyp

(Encyclopedia)Cuyp or Kuyp both: koip [key], family of Dutch painters of Dordrecht. Jacob Gerritszoon Cuyp, 1594–c.1651, pupil of Abraham Bloemaert, was a portrait and landscape painter. His stepbrother and pupil...

Chassériau, Théodore

(Encyclopedia)Chassériau, Théodore tāōdôrˈ shäsārēōˈ [key], 1819–56, French painter, b. Santo Domingo. He entered Ingres's studio at the age of 12; five years later he gained immediate recognition with...

chemical analysis

(Encyclopedia)chemical analysis, the study of the chemical composition and structure of substances. More broadly, it may be considered the corpus of all techniques whereby any exact chemical information is obtained...