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ether, in chemistry

(Encyclopedia)CE5 Ethers ether, any of a number of organic compounds whose molecules contain two hydrocarbon groups joined by single bonds to an oxygen atom. The most common of these compounds is ethyl ether, C...

Hopper, Edward

(Encyclopedia)Hopper, Edward, 1882–1967, American painter and engraver, b. Nyack, N.Y., studied in New York City with Robert Henri and other Ashcan School painters. Hopper lived in France for a year but was littl...

salicylate

(Encyclopedia)salicylate səlĭsˈəlātˌ [key], any of a group of analgesics, or painkilling drugs, that are derivatives of salicylic acid. The best known is acetylsalicylic acid, or aspirin. Now often made synth...

Giulio Romano

(Encyclopedia)Giulio Romano jo͞oˈlyō rōmäˈnō [key], c.1492–1546, Italian painter, architect, and decorator, whose real name was Giulio Pippi. He was the favorite pupil of Raphael and while still a youth wa...

Göteborg

(Encyclopedia)Göteborg gŏthˈənbûrgˌ, gŏtˈən– [key], city, capital of Göteborg och Bohus...

Ostade, Adriaen van

(Encyclopedia)Ostade, Adriaen van äˈdrēän vän ôˈstädə [key], 1610–85, Dutch genre painter, b. Haarlem. Trained in the studio of Frans Hals, he was strongly influenced by his fellow student Adriaen Brouwe...

Nolde, Emil

(Encyclopedia)Nolde, Emil āˈmēl nôlˈdə [key], 1867–1956, German expressionist painter and graphic artist. His original name was Emil Hansen. After teaching in Switzerland (1892–98), Nolde traveled through...

norepinephrine

(Encyclopedia)norepinephrine nôrˌĕpīnĕfˈrən [key], a neurotransmitter in the catecholamine family that mediates chemical communication in the sympathetic nervous system, a branch of the autonomic nervous sys...

Sarto, Andrea del

(Encyclopedia)Sarto, Andrea del ändrĕˈä dĕl särˈtō [key], 1486–1531, Florentine painter of the High Renaissance. He painted chiefly religious subjects. In 1509 he was commissioned by the Servites to decor...

verbena

(Encyclopedia)CE5 Hoary vervain, Verbena stricta verbena, common name for some members of the Verbenaceae, a family of herbs, shrubs, and trees (often climbing forms) of warmer regions of the world. Well-known ...