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Oedipus

(Encyclopedia) OedipusOedipusĕdˈĭpəs, ēˈdĭ– [key], in Greek legend, son of Laius, king of Thebes, and his wife, Jocasta. Laius had been warned by an oracle that he was fated to be killed by his own…

Tacna-Arica Controversy

(Encyclopedia) Tacna-Arica ControversyTacna-Arica Controversytäkˈnə-ərēˈkə [key], 1883–1929, dispute between Chile and Peru. It arose from provisions of the Treaty of Ancón (1883), which ended the…

microscope

(Encyclopedia) CE5 Compound microscope microscope, optical instrument used to increase the apparent size of an object. The electron microscope, which is not limited by the powers of optical…

nursing

(Encyclopedia) nursing, science of providing continuous care for sick or infirm people. While nursing as an occupation has always existed, it is only in fairly recent years that it has developed as a…

Gambetta, Léon

(Encyclopedia) Gambetta, LéonGambetta, LéonlāôNˈ gäNbĕtäˈ [key], 1838–82, French republican leader. A lawyer who achieved some note as an opponent of the Second Empire of Napoleon III, he was elected…

Francis I, Holy Roman emperor

(Encyclopedia) Francis I, 1708–65, Holy Roman emperor (1745–65), duke of Lorraine (1729–37) as Francis Stephen, grand duke of Tuscany (1737–65), husband of Archduchess Maria Theresa. He succeeded his…

Gray, Thomas

(Encyclopedia) Gray, Thomas, 1716–71, English poet. He was educated at Eton and Peterhouse, Cambridge. In 1739 he began a grand tour of the Continent with Horace Walpole. They quarreled in Italy, and…

group

(Encyclopedia) group, in mathematics, system consisting of a set of elements and a binary operation a∘b defined for combining two elements such that the following requirements are satisfied: (1) The…

heir

(Encyclopedia) heir, person designated by law to succeed to the ownership of property of another if that owner does not make a contrary disposition of it by will. A person who takes property left to…

homicide

(Encyclopedia) homicidehomicidehŏmˈəsīd [key], in law, the taking of human life. Homicides that are neither justifiable nor excusable are considered crimes. A criminal homicide committed with malice…