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thirst

(Encyclopedia)thirst, sensation indicating the body's need for water. Dry or salty food and dry, dusty air may induce such a sensation by depleting moisture in the mucous membranes of the mouth and throat. Relief t...

pleurisy

(Encyclopedia)pleurisy plo͝orˈĭsē [key], inflammation of the pleura (the membrane that covers the lungs and lines the chest cavity). It is sometimes accompanied by pain and coughing. The inflammation may be dry...

Rutledge, Ann

(Encyclopedia)Rutledge, Ann, 1813?–1835, American historical figure, alleged fiancée of Abraham Lincoln. Her father kept the inn at New Salem, Ill., where Lincoln lived from 1831 to 1837. Ann's sudden death from...

quinidine

(Encyclopedia)quinidine kwĭnˈĭdēnˌ [key], heart muscle relaxant used to maintain regular heart rhythm patterns. It is an alkaloid chemically similar to quinine and, like quinine, occurs naturally in some speci...

prostatitis

(Encyclopedia)prostatitis prŏsˌtətīˈtĭs [key], inflammation of the prostate gland. Acute prostatitis is usually a result of infection in the urinary tract or infection carried by the blood; in many cases the ...

peritonitis

(Encyclopedia)peritonitis pĕrˌĭtənīˈtĭs [key], acute or chronic inflammation of the peritoneum, the membrane that lines the abdominal cavity and surrounds the internal organs. It is caused by invasion of bac...

anglesite

(Encyclopedia)anglesite ăngˈgləsīt [key], pale green, blue, yellow-to-white, or colorless mineral, a sulfate of lead, PbSO4, that is formed by oxidation of galena, crystallizing in the orthorhombic system and o...

scheelite

(Encyclopedia)scheelite shāˈlīt, shēˈ– [key], heavy white or yellow mineral, calcium tungstate, CaWO4, crystallizing in the tetragonal system. It is found in granite pegmatites, in contact-metamorphic deposi...

Pyeongtaek

(Encyclopedia)Pyeongtaek or Pyongtaek, city (2016 pop. 470,832), Gyeonggi prov., NW South Korea, 45 mi (70 km) S of Seoul. In a rice, fruit, and dairy farming area, it is a port on the Yellow Sea and home to large ...

pyrrhotite

(Encyclopedia)pyrrhotite pĭrˈətīt [key] or magnetic pyrites, bronze-yellow to bronze-red mineral, a sulfide of iron sometimes containing nickel. It tarnishes easily and is somewhat magnetic. It crystallizes in ...