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vision

(Encyclopedia)CE5 Optic nerve vision, physiological sense of sight by which the form, color, size, movements, and distance of objects are perceived. Defects of vision include astigmatism, color blindness, far...

plastic

(Encyclopedia)plastic, any organic material with the ability to flow into a desired shape when heat and pressure are applied to it and to retain the shape when they are withdrawn. The first important plastic, cel...

tense

(Encyclopedia)tense [O.Fr., from Lat.,=time], in the grammar of many languages, a category of time distinctions expressed by any conjugated form of a verb. In Latin inflection the tense of a verb is indicated by a ...

polarography

(Encyclopedia)polarography pōˌlərŏgˈrəfē [key], in chemistry, method for analyzing the composition of a dilute electrolytic solution (see electrolyte). Two electrodes are placed in the solution: One has a fi...

Robbins, Jerome

(Encyclopedia)Robbins, Jerome, 1918–98, American choreographer and dancer, b. New York City as Jerome Wilson Rabinowitz. Robbins began his career dancing in musicals (1937). In 1940 he joined the Ballet Theatre a...

Bourgeois, Louise

(Encyclopedia)Bourgeois, Louise bo͞orzhwäˈ [key], 1911–2010, French-American sculptor, b. Paris. She married the art historian Robert Goldwater in 1938, emigrated to the United States, and became a citizen. He...

af Klint, Hilma

(Encyclopedia)af Klint, Hilma, 1862–1944, Swedish painter, grad. Swedish Royal Academy of Fine Arts, Stockholm (1887). She began painting mainly landscapes and portraits, but is known for her compelling abstract ...

alkane

(Encyclopedia)CE5 Alkanes alkane ălˈkān [key], any of a group of aliphatic hydrocarbons whose molecules contain only single bonds (see chemical bond). Alkanes have the general chemical formula CnH2n+2. An al...

lamprey

(Encyclopedia)lamprey, name for several primitive marine and freshwater jawless fishes of the order Petromyzontiformes. As in the other jawless fish, the hagfish, the adult lamprey retains the notochord, the suppor...

Gorky, Arshile

(Encyclopedia)Gorky, Arshile ärˈshīl gôrˈkē [key], c.1900–48, American painter, b. Armenia as Vosdanig Adoian. He escaped the Turkish slaughter of Armenians, emigrated to the United States in 1920, studied ...