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thrombosis

(Encyclopedia)thrombosis thrŏmbōˈsĭs [key], obstruction of an artery or vein by a blood clot (thrombus). Arterial thrombosis is generally more serious because the supply of oxygen and nutrition to an area of th...

chorea

(Encyclopedia)chorea kərēˈə, kō– [key] or St. Vitus's dance, acute disturbance of the central nervous system characterized by involuntary muscular movements of the face and extremities. The disease, known al...

psoriasis

(Encyclopedia)psoriasis sôrīˈəsĭs [key], occasionally acute but usually chronic and recurrent inflammation of the skin. The exact cause is unknown, but the disease appears to be an inherited, possibly autoimmu...

Quintilian

(Encyclopedia)Quintilian (Marcus Fabius Quintilianus) kwĭntĭlˈyən [key], c.a.d. 35–c.a.d. 95, Roman rhetorician, b. Calagurris (now Calahorra), Spain. He taught rhetoric at Rome (Pliny the Younger and possibl...

parvovirus

(Encyclopedia)parvovirus pärˌvōvīˈrəs [key], any of several small DNA viruses that cause several diseases in animals, including humans. In humans, parvoviruses cause fifth disease, or erythema infectiosum, an...

Fox, Paula

(Encyclopedia)Fox, Paula, 1923–, American writer, b. New York City. Fox's six cooly acute novels reflect her own life, particularly her miserable childhood and its psychological aftermath. Poor George (1967), her...

histamine

(Encyclopedia)histamine hĭsˈtəmēnˌ [key], organic compound derived in the body from the amino acid histidine by the removal of a carboxyl group (COOH). Although found in many plant and animal tissues, histamin...

angle

(Encyclopedia)angle, in mathematics, figure formed by the intersection of two straight lines; the lines are called the sides of the angle and their point of intersection the vertex of the angle. Angles are commonly...

sore throat, streptococcal

(Encyclopedia)sore throat, streptococcal strĕpˌtəkŏkˈəl [key], infection and inflammation of the pharynx caused by certain streptococcal bacteria. These organisms are known as hemolytic streptococci because t...

Ndayishimiye, Évariste

(Encyclopedia)Ndayishimiye, Évariste, 1968–, Burundian political leader. He was a law student before he joined the rebel Hutu militia during the country's civil war (1993–2006), and rose through the ranks of w...