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Troppau, Congress of

(Encyclopedia)Troppau, Congress of trôpˈou [key], 1820, international conference convened at the behest of Czar Alexander I of Russia under the provisions of the Quadruple Alliance. The congress, which met at Tro...

Sonderbund

(Encyclopedia)Sonderbund zônˈdərbo͝ont [key] [Ger.,=separate league], 1845–47, defensive league of seven Roman Catholic cantons of Switzerland; it was formed to protect Catholic interests and prevent the esta...

Saint-Pierre, Charles Irénée Castel, Abbé de

(Encyclopedia)Saint-Pierre, Charles Irénée Castel, Abbé de shärl ērānāˈ kästĕlˈ äbāˈ də săN-pyĕrˈ [key], 1658–1743, French social philosopher. An advocate of natural religion and toleration, he ...

center of mass

(Encyclopedia)center of mass, the point at which all the mass of a body may be considered to be concentrated in analyzing its motion. The center of mass of a sphere of uniform density coincides with the center of t...

pulse, in anatomy

(Encyclopedia)pulse, alternate expansion and contraction of artery walls as heart action varies blood volume within the arteries. Artery walls are elastic. Hence they become distended by increased blood volume duri...

Renzi, Matteo

(Encyclopedia)Renzi, Matteo, 1975–, Italian political leader. Renzi was a member of the Italian People's party, which merged (2002) with other parties to form Democracy Is Freedom—The Daisy, which then merged (...

Rhett, Robert Barnwell

(Encyclopedia)Rhett, Robert Barnwell, 1800–1876, American politician, b. Beaufort, S.C. His family changed its name from Smith to Rhett (after a colonial ancestor) in 1837. A lawyer, he was a state legislator, st...

depressant

(Encyclopedia)depressant, any one of various substances that diminish functional activity, usually by depressing the nervous system. Barbiturates, sedatives, alcohol, and meprobamate are all depressants. Depressant...

divination

(Encyclopedia)divination, practice of foreseeing future events or obtaining secret knowledge through communication with divine sources and through omens, oracles, signs, and portents. It is based on the belief in r...

Davis, Henry Winter

(Encyclopedia)Davis, Henry Winter, 1817–65, American political leader, b. Annapolis, Md. He was elected (1854) to the House of Representatives on the Know-Nothing ticket and was twice reelected (1856, 1858) with ...