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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...

Schulz, Bruno

(Encyclopedia)Schulz, Bruno, 1892–1942, Polish short-story writer and artist. Unrecognized until after World War II, Schulz is now considered the finest modern Polish-language prose stylist and a significant visu...

seal, in zoology

(Encyclopedia)seal, carnivorous aquatic mammal with front and hind feet modified as flippers, or fin-feet. The name seal is sometimes applied broadly to any of the fin-footed mammals, or pinnipeds, including the wa...

Sender, Ramón José

(Encyclopedia)Sender, Ramón José rämōnˈhōsāˈsāndĕrˈ [key], 1902–82, Spanish novelist. A journalist, Sender fought on the side of the Loyalists in the Spanish civil war. He left Spain in 1938 and became...

serum sickness

(Encyclopedia)serum sickness, hypersensitive response that occurs after injection of a large amount of foreign protein. The condition is named for the serum taken from horses or other animals immunized against a pa...

sexually transmitted disease

(Encyclopedia)sexually transmitted disease (STD) or venereal disease, term for infections acquired mainly through sexual contact. Five diseases were traditionally known as venereal diseases: gonorrhea, syphilis, an...

Vidal, Gore

(Encyclopedia)Vidal, Gore (Eugene Luther Gore Vidal, Jr.), 1925–2012, American writer, b. West Point, N.Y. He grew up in Washington, D.C., where a formative influence was his witty and scholarly grandfather, Sena...

Colombia

(Encyclopedia)CE5 Colombia kəlŭmˈbēə, Span. kōlōmˈbyä [key], officially Republic of Col...

Colorado tick fever

(Encyclopedia)Colorado tick fever or mountain tick fever, acute disease caused by infection with a double-stranded RNA virus (a Coltvirus) that is transmitted to humans by Rocky Mountain wood ticks (Dermacentor and...

congestive heart failure

(Encyclopedia)congestive heart failure, inability of the heart to expel sufficient blood to keep pace with the metabolic demands of the body. In the healthy individual the heart can tolerate large increases of work...