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penicillin

(Encyclopedia)penicillin, any of a group of chemically similar substances obtained from molds of the genus Penicillium that were the first antibiotic agents to be used successfully in the treatment of bacterial inf...

Lassa fever

(Encyclopedia)Lassa fever lăsˈə [key], an acute viral disease occurring mostly in W Africa, characterized by high fever, muscle aches, mouth ulcers, and bleeding in the skin in more severe cases. The disease was...

tinnitus

(Encyclopedia)tinnitus, the hearing of sounds in the absence of any external sound, also known as ringing in the ears. The sounds may be perceived as hissing, whistling, buzzing, swooshing, roaring, or clicking in ...

compulsive gambling

(Encyclopedia)compulsive gambling or pathological gambling, a psychological disorder characterized by a persistent inability to resist the impulse to gamble. The disorder is progressive and typically results in dif...

prostate gland

(Encyclopedia)prostate gland, gland that is part of the male reproductive system. It is an organ about the size of a chestnut and consists of glandular and muscular tissue. It is situated below the neck of the blad...

Quetta

(Encyclopedia)Quetta kwĕˈtə [key], city (1998 pop. 560,307), capital of Baluchistan prov., W central Pakistan, at an altitude of c.5,500 ft (1,675 m), ringed by mountains. Deriving its name from the Pashto word ...

Jones, George Glenn

(Encyclopedia)Jones, George Glenn, 1931–2013, American country music singer and guitarist, b. Saratoga, Tex. Influenced by Roy Acuff and Hank Williams, he began recording in 1954; among his early hits were Why Ba...

Justice, United States Department of

(Encyclopedia)Justice, United States Department of, federal executive department established in 1870 and charged with providing the means for enforcing federal laws, furnishing legal counsel in federal cases, and c...

Williams, Sir Bernard

(Encyclopedia)Williams, Sir Bernard (Sir Bernard Arthur Owen Williams), 1929–2003, English philosopher, grad. Oxford (1951). One of the most important philosophers of his era, he is credited with reviving the fie...