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miracle

(Encyclopedia)miracle, preternatural occurrence that is viewed as the expression of a divine will. Its awe and wonder lie in the fact that the cause is hidden. The idea of the miracle occurs especially with the evo...

athlete's heart

(Encyclopedia)athlete's heart, common term for an enlarged heart associated with repeated strenuous exercise. As a result of the increased workload required of it, the heart will increase physiologically by enlargi...

Lateran Treaty

(Encyclopedia)Lateran Treaty, concordat between the Holy See and the kingdom of Italy signed in 1929 in the Lateran Palace, Rome, by Cardinal Gasparri for Pius XI and by Benito Mussolini for Victor Emmanuel III. On...

Haggai

(Encyclopedia)Haggai hăgˈāī [key], prophetic book of the Bible. Dated 520 b.c., it is a collection of five oracles addressed to Jews, newly returned from the Babylonian exile. The prophet summons the people to ...

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 him by will is n...

Bute, John Stuart, 3d earl of

(Encyclopedia)Bute, John Stuart, 3d earl of byo͞ot [key], 1713–92, British politician. He was prominent as a friend of Frederick Louis, prince of Wales, as early as 1747 and became the tutor of Frederick's impre...

complementarity principle

(Encyclopedia)complementarity principle, physical principle enunciated by Niels Bohr in 1928 stating that certain physical concepts are complementary. If two concepts are complementary, an experiment that clearly i...

blood groups

(Encyclopedia)blood groups, differentiation of blood by type, classified according to immunological (antigenic) properties, which are determined by specific substances on the surface of red blood cells. Blood group...

chromatography

(Encyclopedia)chromatography krōˌmətŏgˈrəfē [key], resolution of a chemical mixture into its component compounds by passing it through a system that retards each compound to a varying degree; a system capabl...

George IV, king of Great Britain and Ireland

(Encyclopedia)George IV, 1762–1830, king of Great Britain and Ireland (1820–30), eldest son and successor of George III. In 1785 he married Maria Anne Fitzherbert, a Roman Catholic. The marriage was illegal, ho...