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Sara

(Encyclopedia)Sara or Sarah, in the Bible, wife of Abraham and mother of Isaac. With Rebecca, Rachel, and Leah, she was one of the four Hebrew matriarchs. Her name was originally Sarai [Heb.,=princess]. She was chi...

harelip

(Encyclopedia)harelip, congenital abnormality in which there is a cleft or split in the upper lip. There may be a single opening in the middle portion of the lip or an opening on each side. The condition frequently...

Walther von der Vogelweide

(Encyclopedia)Walther von der Vogelweide välˈtər fən dĕr fōˈgəlvīˌdə [key], c.1170–c.1230, German minnesinger of noble birth, probably the finest lyric poet of medieval Germany. He wandered from court ...

vasectomy

(Encyclopedia)vasectomy, male sterilization by surgical excision of the vas deferens, the thin duct that carries sperm cells from the testicles to the prostate and the penis. Vasectomy is a popular method of birth ...

Louis X, king of France

(Encyclopedia)Louis X, Fr. Louis le Hutin lwē lə ütâNˈ [key] [the quarrelsome], 1289–1316, king of France (1314–16), son and successor of Philip IV. His reign was dominated by his uncle, Charles of Valois,...

Eurynome

(Encyclopedia)Eurynome yo͞orĭnˈəmē [key], in Greek mythology, daughter of Oceanus and Tethys and mother, by Zeus, of the Graces. In the mythology of the Pelasgians, an aboriginal non-Greek people living in Gre...

Elizabeth, queen of Romania

(Encyclopedia)Elizabeth, 1843–1916, queen of Romania, consort of King Carol I, whom she married in 1869. Of German birth, she was the daughter of Hermann, prince of Wied. She completely identified herself with he...

congenital heart disease

(Encyclopedia)congenital heart disease, any defect in the heart present at birth. There is evidence that some congenital heart defects are inherited, but the cause of most cases is unknown. One known cause is infec...

conjoined twins

(Encyclopedia)conjoined twins, congenitally united organisms that are complete or nearly complete individuals, historically known as Siamese twins. They develop from a single fertilized ovum that has divided imperf...

Wollstonecraft, Mary

(Encyclopedia)Wollstonecraft, Mary wo͝olˈstənkräft, –krăft [key], 1759–97, English author and feminist, b. London. She was an early proponent of educational equality between men and women, expressing this ...