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parathyroid glands

(Encyclopedia)parathyroid glands pârˌəthīˈroid [key], four small endocrine bodies, located behind the thyroid gland, that govern calcium and phosphorus metabolism. These four masses of tissue (each about the s...

pacemaker, artificial

(Encyclopedia)pacemaker, artificial, device used to stimulate a rhythmic heartbeat by means of electrical impulses. Implanted in the body when the heart's own electrical conduction system (natural pacemaker) does n...

Lateran Council, Fifth

(Encyclopedia)Lateran Council, Fifth, 1512–17, 18th ecumenical council of the Roman Catholic Church, convened by Pope Julius II and continued by his successor Leo X. Julius called the council to counter an attemp...

Baja California Sur

(Encyclopedia)Baja California Sur so͝or [key], state, 27,571 sq mi (71,428 sq km), NW Mexico, on the S Baja California peninsula. ...

Cade, Jack

(Encyclopedia)Cade, Jack, d. 1450, English rebel. Of his life very little is known. He may have been of Irish birth; some of his followers called him John Mortimer and claimed he was a cousin of Richard, duke of Yo...

Castile–La Mancha

(Encyclopedia)Castile–La Mancha kăstēlˈ–lä mänˈchə [key], autonomous community, 30,680 s...

Strathclyde

(Encyclopedia)Strathclyde străthˌklīdˈ [key] [Gaelic,=Clyde valley], one of several early medieval Celtic or Welsh kingdoms in present-day S Scotland and N England. Strathclyde was in SW Scotland. To the east w...

Suez

(Encyclopedia)Suez so͞oĕzˈ [key], city (1996 pop. 417,610), NE Egypt, at the northern end of the Gulf of Suez and at the southern terminus of the Suez Canal. An important port with extensive facilities, it is al...

Vargas, Getúlio Dornelles

(Encyclopedia)Vargas, Getúlio Dornelles zhəto͞oˈlyō dôrnĕˈlĭs värˈgəs [key], 1883–1954, Brazilian statesman, twice president (1930–45, 1951–54). The popular governor of Rio Grande do Sul (1928–3...

Wirt, William

(Encyclopedia)Wirt, William wûrt [key], 1772–1834, U.S. Attorney General and author, b. Bladensburg, Md. He had little formal schooling but was admitted to the Virginia bar in 1792. His first book was an anonymo...