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vortex

(Encyclopedia)vortex vôrˈtĕks [key], mass of fluid in whirling or rotary motion. To simplify the analysis, vortex motion usually describes motions in a frictionless fluid. In such cases the absence of friction w...

business ethics

(Encyclopedia)business ethics, the study and evaluation of decision making by businesses according to moral concepts and judgments. Ethical questions range from practical, narrowly defined issues, such as a company...

bhakti

(Encyclopedia)bhakti bŭkˈtē [key] [Skt.,=devotion], theistic devotion in Hinduism. Bhakti cults seem to have existed from the earliest times, but they gained strength in the first millennium a.d. The first full ...

duma

(Encyclopedia)duma do͞oˈmä [key], Russian name for a representative body, particularly applied to the Imperial Duma established as a result of the Russian Revolution of 1905. The parliamentary organization of 19...

hummingbird

(Encyclopedia)hummingbird, common name for members of the family Trochilidae, small, strictly New World birds, related to the swifts, and found chiefly in the mountains of South America. Hummingbirds vary in size f...

Horace

(Encyclopedia)Horace (Quintus Horatius Flaccus) hôrˈəs [key], 65 b.c.–8 b.c., Latin poet, one of the greatest of lyric poets, b. Venusia, S Italy. He studied at Rome and Athens and, joining Brutus and the repu...

O'Brien, Edna

(Encyclopedia)O'Brien, Edna, 1932–, Irish writer. Although she moved to London in 1954, her constant theme and recurring setting is Ireland. In richly sensual prose, O'Brien explores the dreams, failed marriages,...

Northumbria, kingdom of

(Encyclopedia)Northumbria, kingdom of nôrthŭmˈbrēˈə [key], one of the Anglo-Saxon kingdoms in England. It was originally composed of two independent kingdoms divided by the Tees River, Bernicia (including mod...

nitric acid

(Encyclopedia)nitric acid, chemical compound, HNO3, colorless, highly corrosive, poisonous liquid that gives off choking red or yellow fumes in moist air. It is miscible with water in all proportions. It forms an a...

Pará, state, Brazil

(Encyclopedia)Pará pəräˈ [key], state (1996 pop. 5,552,783), 474,896 sq mi (1,229,981 sq km), N Brazil, in the lower Amazon River basin bordering on the Guianas and the Atlantic Ocean. Belém is the capital. Mo...