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sleep apnea

(Encyclopedia)sleep apnea, episodes of interrupted breathing during sleep. Obstructive sleep apnea is a common disorder in which relaxation of muscles in the throat repeatedly close off the airway during sleep; the...

metaphysical poets

(Encyclopedia)metaphysical poets, name given to a group of English lyric poets of the 17th cent. The term was first used by Samuel Johnson (1744). The hallmark of their poetry is the metaphysical conceit (a figure ...

Wakefield, city, England

(Encyclopedia)Wakefield, city and metropolitan borough (1991 pop. 74,764), N central England, on the Calder River. Wakefield has been a center of the cloth industry from the 14th cent. Other manufactures include wo...

Sønderborg

(Encyclopedia)Sønderborg söˈnərbôr [key], Ger. Sonderburg, city (1992 pop. 25,551), Sønderjylland co., S Denmark, on both sides of the Als Sund. The older section of the city is situated on Als Island and is ...

mesquite, in botany

(Encyclopedia)mesquite mĭskētˈ, mĕsˈkēt [key], any plant of the genus Prosopis, leguminous spiny trees or shrubs of the family Leguminosae (pulse family), native to tropical and subtropical regions. The seed ...

Huerta, Victoriano

(Encyclopedia)Huerta, Victoriano vēktōryäˈnō [key], 1854–1916, Mexican general and president (1913–14). He served under Porfirio Díaz. After the revolution of Francisco I. Madero (1911) he aided the new p...

vanilla

(Encyclopedia)vanilla, a plant of the genus Vanilla of the family Orchidaceae (orchid family). Vines of hot, damp climates, most are indigenous to Central and South America, especially Mexico, but are now cultivate...

Bremen

(Encyclopedia)Bremen brāˈmən [key], city, capital of the state of Bremen, NW Germany, on the Weser River...

hop

(Encyclopedia)hop, herbaceous perennial vine of the family Moraceae (mulberry family), widely cultivated since early times for brewing purposes. The commercial hop (Humulus lupulus) is native to Eurasia but is now ...

Ogilvy, David Mackenzie

(Encyclopedia)Ogilvy, David Mackenzie, 1911–99, British-American advertising executive. He was a chef in Paris and a door-to-door salesman before entering advertising, becoming an account executive in Britain and...