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Vidal de la Blache, Paul

(Encyclopedia)Vidal de la Blache, Paul pōl vēdälˈ də lä bläsh [key], French geographer, 1845–1918, the father of French human geography. He was educated at the École Normale Supérieure, Paris, and had an...

Dobzhansky, Theodosius

(Encyclopedia)Dobzhansky, Theodosius dôbzhänˈskē [key], 1900–1975, American geneticist, b. Russia, grad. Univ. of Kiev, 1921. He emigrated to the United States in 1927 and was naturalized in 1937. Dobzhansky ...

John D. and Catherine T. MacArthur Foundation

(Encyclopedia)John D. and Catherine T. MacArthur Foundation, philanthropic institution founded 1978 by John D. MacArthur (1897–1978), owner of a prominent insurance company and other businesses, and his wife Cath...

Rhodesian man

(Encyclopedia)Rhodesian man, remains of an extinct hominin now classified as Homo heidelbergensis. See human evolution. ...

tetracycline

(Encyclopedia)tetracycline tĕˌtrəsīˈklēn [key], any of a group of antibiotics produced by bacteria of the genus Streptomyces. Effective against a wide range of Gram positive and Gram negative bacteria, tetrac...

senility

(Encyclopedia)senility sənilˈətē [key], deterioration of body and mind associated with old age. Indications of old age vary in the time of their appearance. Stooped posture, wrinkled skin, decrease in muscle st...

Chandler, Raymond Thornton

(Encyclopedia)Chandler, Raymond Thornton, 1888–1959, American author, b. Chicago, educated in England. After World War I, he entered the oil business in California. Bankrupt during the Depression, he published hi...

characin

(Encyclopedia)characin –sĭd [key], common name for members of the Characidae, a large and diverse family comprising 700 species of freshwater fishes. The characins are related to the carp and the catfish. They a...

Kemal, Yaşar

(Encyclopedia)Kemal, Yaşar or Yashar, 1923–2015, Turkish novelist, b. Kemal Sadik Gögçeli. His rural childhood was marked by poverty and trauma; at a mosque at age five he witnessed his father's murder and was...

atonement

(Encyclopedia)atonement, the reconciliation, or “at-one-ment,” of sinful humanity with God. In Judaism both the Bible and rabbinical thought reflect the belief that God's chosen people must be pure to remain in...