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blood bank

(Encyclopedia)blood bank, site or mobile unit for collecting, processing, typing, and storing whole blood, blood plasma and other blood constituents. Most hospitals maintain their own blood reserves, and the Americ...

progressivism

(Encyclopedia)progressivism, in U.S. history, a broadly based reform movement that reached its height early in the 20th cent. In the decades following the Civil War rapid industrialization transformed the United St...

ballad

(Encyclopedia)ballad, in literature and music, short, narrative poem or song usually relating a single, dramatic event. Two forms of the ballad are often distinguished—the folk ballad, dating from about the 12th ...

language acquisition

(Encyclopedia)language acquisition, the process of learning a native or a second language. The acquisition of native languages is studied primarily by developmental psychologists and psycholinguists. Although how c...

Kruger, Paul

(Encyclopedia)Kruger, Paul (Stephanas Johannes Paulus) kro͞oˈgər, Afrikaans stāfäˈnəs yōhäˈnəs pouˈləs krüˈgər [key], 1825–1904, South African Transvaal statesman, known as Oom Paul. As a child he...

Maintenon, Françoise d'Aubigné, marquise de

(Encyclopedia)Maintenon, Françoise d'Aubigné, marquise de fräNswäzˈ dōbēnyāˈ märkēzˈ də măNtənôNˈ [key], 1635–1719, second wife of the French king Louis XIV. Her grandfather was Théodore Agrippa...

measles

(Encyclopedia)measles or rubeola ro͞obēˈələ [key], highly contagious disease typically contracted during childhood, caused by a filterable virus and spread by droplet spray from the nose, mouth, and throat of ...

megachurch

(Encyclopedia)megachurch, large Protestant church with an average weekly attendance of 2,000 or more; relatively uncommon until after 1970. In the United States, where most megachurches are located, there were more...

Giorgione

(Encyclopedia)Giorgione jōrjôˈnā [key], c.1478–1510, Venetian painter, b. Castelfranco Veneto; fellow student of Titian under Giovanni Bellini in Venice. Giorgione was known also as Zorgo or Zorgi da Castelfr...

juvenile delinquency

(Encyclopedia)juvenile delinquency, legal term for behavior of children and adolescents that in adults would be judged criminal under law. In the United States, definitions and age limits of juveniles vary, the max...