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scarlet fever

(Encyclopedia)scarlet fever or scarlatina, an acute, communicable infection, caused by group A hemolytic streptococcal bacteria (see streptococcus) that produce an erythrogenic toxin. The disease is now uncommon, p...

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...

sedition

(Encyclopedia)sedition sĭdĭˈshən [key], in law, acts or words tending to upset the authority of a government. The scope of the offense was broad in early common law, which even permitted prosecution for a remar...

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...

Serbia

(Encyclopedia)CE5 Serbia sŭrˈbēä [key], officially Republic of Serbia, republic (2015 est. pop. 8,851,000), 34,116 sq mi (88,361 sq km), W central Balkan Peninsula; formerly the chief constituent republic of...

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...

Vespasian

(Encyclopedia)Vespasian (Titus Flavius Vespasianus) vĕspāˈzhən [key], a.d. 9–a.d. 79, Roman emperor (a.d. 69–a.d. 79), founder of the Flavian dynasty. The son of a poor family, he made his way in the army b...