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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...

podiatry

(Encyclopedia)podiatry pōdīˈətrē, pə– [key], science concerned with disorders, diseases, and deformities of the feet, also called chiropody. Podiatrists treat such common conditions as bunions, corns and ca...

orthopedics

(Encyclopedia)orthopedics ôrthəpēˈdĭks [key], medical specialty concerned with deformities, injuries, and diseases of the bones, joints, ligaments, tendons, and muscles. Most of the early advances in orthopedi...

bipolar disorder

(Encyclopedia)bipolar disorder, formerly manic-depressive disorder or manic-depression, severe mental disorder involving manic episodes that are usually accompanied by episodes of depression. The term “manic-depr...

birth defects

(Encyclopedia)birth defects, abnormalities in physical or mental structure or function that are present at birth. They range from minor to seriously deforming or life-threatening. A major defect of some type occurs...

psychosomatic medicine

(Encyclopedia)psychosomatic medicine sīˌkōsōmătˈĭk [key], study and treatment of those emotional disturbances that are manifested as physical disorders. The term psychosomatic emphasizes essential unity of t...

schizophrenia

(Encyclopedia)schizophrenia skĭtˌsəfrēˈnēə [key], group of severe mental disorders characterized by reality distortions resulting in unusual thought patterns and behaviors. Because there is often little or n...

David, Elizabeth

(Encyclopedia)David, Elizabeth, 1914–92, English food writer, b. Elizabeth Gwynne. Daughter of a wealthy Conservative MP, she cut her culinary eyeteeth in Paris while studying at the Sorbonne, then developed her ...

ergot

(Encyclopedia)ergot ûrˈgət [key], disease of rye and other cereals caused by the fungus Claviceps purpurea. The cottony, matlike body, or mycelium, of the fungus develops in the ovaries of the host plant; it eve...